NCBI Taxonomy: 84858

Aspidosperma (ncbi_taxid: 84858)

found 500 associated metabolites at genus taxonomy rank level.

Child Taxonomies: Aspidosperma album, Aspidosperma cuspa, Aspidosperma cruentum, Aspidosperma oblongum, Aspidosperma excelsum, Aspidosperma australe, Aspidosperma olivaceum, Aspidosperma polyneuron, Aspidosperma tomentosum, Aspidosperma ramiflorum, Aspidosperma subincanum, Aspidosperma spruceanum, Aspidosperma desmanthum, Aspidosperma pyrifolium, Aspidosperma multiflorum, Aspidosperma parvifolium, Aspidosperma triternatum, Aspidosperma megalocarpon, unclassified Aspidosperma, Aspidosperma marcgravianum, Aspidosperma cylindrocarpon, Aspidosperma myristicifolium, Aspidosperma quebracho-blanco

Yohimbine

(1R,2S,4aR,13bS,14aS)-2-hydroxy-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydro-indolo[2,3:3,4]pyrido[1,2-b]isoquinoline-1-carboxylic acid methyl ester hydrochloride

C21H26N2O3 (354.19433260000005)

Yohimbine is an indole alkaloid with alpha2-adrenoceptor antagonist activity. It is produced by Corynanthe johimbe and Rauwolfia serpentina. It has a role as an alpha-adrenergic antagonist, a serotonergic antagonist and a dopamine receptor D2 antagonist. It is functionally related to a yohimbic acid. A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of impotence. It is also alleged to be an aphrodisiac. Yohimbine is an indole alkaloid derived from the bark of the Central African yohimbe tree (Pausinystalia yohimbe) that is widely used as therapy for erectile dysfunction. Yohimbine use has been associated with occasional severe adverse events, but has not been linked to serum enzyme elevations or clinically apparent acute liver injury. Yohimbine is a natural product found in Rauvolfia yunnanensis, Tabernaemontana corymbosa, and other organisms with data available. A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION. See also: Yohimbine Hydrochloride (active moiety of) ... View More ... Yohimbine is only found in individuals that have used or taken this drug. It is a plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of impotence. It is also alleged to be an aphrodisiac. [PubChem]Yohimbine is a pre-synaptic alpha 2-adrenergic blocking agent. The exact mechanism for its use in impotence has not been fully elucidated. However, yohimbine may exert its beneficial effect on erectile ability through blockade of central alpha 2-adrenergic receptors producing an increase in sympathetic drive secondary to an increase in norepinephrine release and in firing rate of cells in the brain noradrenergic nuclei. Yohimbine-mediated norepinephrine release at the level of the corporeal tissues may also be involved. In addition, beneficial effects may involve other neurotransmitters such as dopamine and serotonin and cholinergic receptors. G - Genito urinary system and sex hormones > G04 - Urologicals > G04B - Urologicals > G04BE - Drugs used in erectile dysfunction An indole alkaloid with alpha2-adrenoceptor antagonist activity. It is produced by Corynanthe johimbe and Rauwolfia serpentina. C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C72900 - Adrenergic Antagonist D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D018674 - Adrenergic Antagonists D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D009184 - Mydriatics D000089162 - Genitourinary Agents > D064804 - Urological Agents D001697 - Biomedical and Dental Materials > D003764 - Dental Materials Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM [1] Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. [3] in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice.[2] Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM [1] Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. [3] in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice.[2]

Rescinnamine

methyl (1R,15S,17R,18R,19S,20S)-6,18-dimethoxy-17-{[3-(3,4,5-trimethoxyphenyl)prop-2-enoyl]oxy}-3,13-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-2(10),4(9),5,7-tetraene-19-carboxylate

C35H42N2O9 (634.2890162)

Rescinnamine is only found in individuals that have used or taken this drug. It is an angiotensin-converting enzyme inhibitor used as an antihypertensive drug. It is an alkaloid obtained from Rauwolfia serpentina and other species of Rauwolfia. [Wikipedia]Rescinnamine Binds to and inhibits the angiotensin converting enzyme. Rescinnamine competes with angiotensin I for binding at the angiotensin-converting enzyme, blocking the conversion of angiotensin I to angiotensin II. Inhibition of ACE results in decreased plasma angiotensin II. As angiotensin II is a vasoconstrictor and a negative-feedback mediator for renin activity, lower concentrations result in a decrease in blood pressure and stimulation of baroreceptor reflex mechanisms, which leads to decreased vasopressor activity and to decreased aldosterone secretion. C - Cardiovascular system > C02 - Antihypertensives > C02A - Antiadrenergic agents, centrally acting > C02AA - Rauwolfia alkaloids C78274 - Agent Affecting Cardiovascular System > C270 - Antihypertensive Agent Rescinnamine is an odorless white to cream colored crystalline powder. (NTP, 1992) Rescinnamine is a methyl ester, an organic heteropentacyclic compound and an indole alkaloid. It has a role as an antihypertensive agent. It derives from a hydride of a yohimban. Rescinnamine is a natural product found in Vinca major, Aspidosperma excelsum, and other organisms with data available.

Vinburnine

(41S,13aS)-13a-Ethyl-2,3,5,6,13,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridin-12(41H)-one

C19H22N2O (294.1732042)

Eburnamonine is an alkaloid. Vinburnine is a natural product found in Kopsia pauciflora, Aspidosperma quebracho-blanco, and other organisms with data available. C274 - Antineoplastic Agent > C1931 - Antineoplastic Plant Product > C932 - Vinca Alkaloid Compound C - Cardiovascular system > C04 - Peripheral vasodilators > C04A - Peripheral vasodilators C78274 - Agent Affecting Cardiovascular System > C29707 - Vasodilating Agent D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents D000970 - Antineoplastic Agents > D014748 - Vinca Alkaloids C1907 - Drug, Natural Product relative retention time with respect to 9-anthracene Carboxylic Acid is 0.645 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.638 Vincamone is a vinca alkaloid and a metabolite of vincamine, is a vasodilator. Vincamone is a vinca alkaloid and a metabolite of vincamine, is a vasodilator.

Yangambin

1H,3H-Furo(3,4-c)furan, tetrahydro-1,4-bis(3,4,5-trimethoxyphenyl)-, (1S-(1alpha,3aalpha,4beta,6aalpha))-

C24H30O8 (446.194058)

Epiyangambin is a natural product found in Hernandia ovigera, Achillea holosericea, and other organisms with data available.

N-Acetylaspidoalbidine

C21H26N2O2 (338.1994176)

Rhazin

methyl (1S,12S,13S,14S,15E)-15-ethylidene-13-(hydroxymethyl)-3,17-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8-tetraene-13-carboxylate

C21H24N2O3 (352.17868339999995)

Akuammidine is a natural product found in Aspidosperma quebracho-blanco, Tabernaemontana citrifolia, and other organisms with data available.

Apparicine

(-)-Apparicine

C18H20N2 (264.16264)

aricine

SCHEMBL15384584

C22H26N2O4 (382.18924760000004)

Aspidoalbine

Aspidospermidin-17-ol, 19,21-epoxy-15,16-dimethoxy-1-(1-oxopropyl)-

C24H32N2O5 (428.2311102)

Ochrolifuanine A

16-[(1R)-2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indol-1-yl]-17-norcorynan

C29H34N4 (438.2783324)

Olivacine

6H-Pyrido[4,3-b]carbazole,1,5-dimethyl-

C17H14N2 (246.1156924)

D000970 - Antineoplastic Agents > D000972 - Antineoplastic Agents, Phytogenic > D004611 - Ellipticines

(-)-Quebrachamine

15-ethyl-1,11-diazatetracyclo[13.3.1.0⁴,¹².0⁵,¹⁰]nonadeca-4(12),5,7,9-tetraene

C19H26N2 (282.2095876)

(-)-Quebrachamine is an alkaloid from Aspidosperma quebracho-blanco (quebracho

Usambarensine

C29H28N4 (432.2313848)

Rhazinine

C19H24N2O (296.18885339999997)

Aspidospermatine

1-[(18E)-18-ethylidene-6-methoxy-8,14-diazapentacyclo[9.5.2.0¹,⁹.0²,⁷.0¹⁴,¹⁷]octadeca-2(7),3,5-trien-8-yl]ethan-1-one

C21H26N2O2 (338.1994176)

Aspidospermatine is an alkaloid from Aspidosperma quebracho-blanco (quebracho

(-)-Aspidospermine

1-[(1R,9R,12R,19R)-12-ethyl-6-methoxy-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2(7),3,5-trien-8-yl]ethan-1-one

C22H30N2O2 (354.230716)

(-)-Aspidospermine is an alkaloid from Aspidosperma quebracho-blanco (quebracho

Tetrahydroalstonine

C21H24N2O3 (352.17868339999995)

Annotation level-1 D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents CASMI2013 Challenge_14 MS2 data

Quinidine

(S)-[(2R,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl]-(6-methoxyquinolin-4-yl)methanol

C20H24N2O2 (324.18376839999996)

Crystals or white powder. (NTP, 1992) Quinidine is a cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy. It has a role as an alpha-adrenergic antagonist, an antimalarial, an anti-arrhythmia drug, a sodium channel blocker, a muscarinic antagonist, a potassium channel blocker, a P450 inhibitor, an EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor, an EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor and a drug allergen. It derives from a hydride of a cinchonan. Quinidine is a D-isomer of [quinine] present in the bark of the Cinchona tree and similar plant species. This alkaloid was first described in 1848 and has a long history as an antiarrhythmic medication. Quinidine is considered the first antiarrhythmic drug (class Ia) and is moderately efficacious in the acute conversion of atrial fibrillation to normal sinus rhythm. It prolongs cellular action potential by blocking sodium and potassium currents. A phenomenon known as “quinidine syncope” was first described in the 1950s, characterized by syncopal attacks and ventricular fibrillation in patients treated with this drug. Due to its side effects and increased risk of mortality, the use of quinidine was reduced over the next few decades. However, it continues to be used in the treatment of Brugada syndrome, short QT syndrome and idiopathic ventricular fibrillation. Quinidine is an Antiarrhythmic and Cytochrome P450 2D6 Inhibitor. The mechanism of action of quinidine is as a Cytochrome P450 2D6 Inhibitor. Quinidine is a natural cinchona alkaloid which has potent antiarrhythmic activity and has been used for decades in the treatment of atrial and ventricular arrhythmias. Quinidine has been associated with fever, mild jaundice and clinically apparent liver injury in up to 2\\\\% of treated patients. Quinidex is a natural product found in Cinchona calisaya, Aspidosperma excelsum, and other organisms with data available. Quinidine is an alkaloid extracted from the bark of the Cinchona tree with class 1A antiarrhythmic and antimalarial effects. Quinidine stabilizes the neuronal membrane by binding to and inhibiting voltage-gated sodium channels, thereby inhibiting the sodium influx required for the initiation and conduction of impulses resulting in an increase of the threshold for excitation and decreased depolarization during phase 0 of the action potential. In addition, the effective refractory period (ERP), action potential duration (APD), and ERP/APD ratios are increased, resulting in decreased conduction velocity of nerve impulses. Quinidine exerts its antimalarial activity by acting primarily as an intra-erythrocytic schizonticide through association with the heme polymer (hemazoin) in the acidic food vacuole of the parasite thereby preventing further polymerization by heme polymerase enzyme. This results in accumulation of toxic heme and death of the parasite. An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission. See also: Quinidine Gluconate (active moiety of); Quinidine Sulfate (active moiety of); Quinidine polygalacturonate (is active moiety of). An optical isomer of quinine, extracted from the bark of the Cinchona tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular action potential, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission. [PubChem] C - Cardiovascular system > C01 - Cardiac therapy > C01B - Antiarrhythmics, class i and iii > C01BA - Antiarrhythmics, class ia A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy. D004791 - Enzyme Inhibitors > D065607 - Cytochrome P-450 Enzyme Inhibitors > D065690 - Cytochrome P-450 CYP2D6 Inhibitors D002317 - Cardiovascular Agents > D026941 - Sodium Channel Blockers > D061567 - Voltage-Gated Sodium Channel Blockers D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D018680 - Cholinergic Antagonists D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D018674 - Adrenergic Antagonists D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C277 - Antiprotozoal Agent COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents D049990 - Membrane Transport Modulators C93038 - Cation Channel Blocker Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS [Raw Data] CBA33_Quinidine_pos_50eV_1-1_01_1622.txt [Raw Data] CBA33_Quinidine_pos_30eV_1-1_01_1620.txt [Raw Data] CBA33_Quinidine_pos_40eV_1-1_01_1621.txt [Raw Data] CBA33_Quinidine_pos_20eV_1-1_01_1619.txt [Raw Data] CBA33_Quinidine_pos_10eV_1-1_01_1616.txt Quinidine (15\\% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research[1][2][3][4]. Quinidine (15\% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research[1][2][3][4].

Lirioresinol A

4-[6-(4-hydroxy-3,5-dimethoxy-phenyl)-1,3,3a,4,6,6a-hexahydrofuro[3,4-c]furan-3-yl]-2,6-dimethoxy-phenol

C22H26O8 (418.1627596)

Syringaresinol is a lignan that is 7,9:7,9-diepoxylignane substituted by hydroxy groups at positions 4 and 4 and methoxy groups at positions 3, 3, 5 and 5 respectively. It has a role as a plant metabolite. It is a lignan, a polyphenol, an aromatic ether, a furofuran and a polyether. Syringaresinol is a natural product found in Dracaena draco, Ficus septica, and other organisms with data available. A lignan that is 7,9:7,9-diepoxylignane substituted by hydroxy groups at positions 4 and 4 and methoxy groups at positions 3, 3, 5 and 5 respectively. Isolated from Artemisia absinthium (wormwood). Lirioresinol A is found in alcoholic beverages and herbs and spices. Lirioresinol A is found in alcoholic beverages. Lirioresinol A is isolated from Artemisia absinthium (wormwood).

Corynanthin

Methyl 18-hydroxy-3,13- diazapentacyclo[11.8.0.02,10.04,9.015,20]henicosa- 2(10),4,6,8-tetraene-19-carboxylate

C21H26N2O3 (354.19433260000005)

Methyl 17-hydroxy-20xi-yohimban-16-carboxylate is a yohimban alkaloid, a methyl ester and an organic heteropentacyclic compound. Methyl 17-hydroxy-20xi-yohimban-16-carboxylate is a natural product found in Aspidosperma oblongum, Aspidosperma ramiflorum, and other organisms with data available. D001697 - Biomedical and Dental Materials > D003764 - Dental Materials

(-)-Pyrifolidine

1-{12-ethyl-5,6-dimethoxy-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2(7),3,5-trien-8-yl}ethan-1-one

C23H32N2O3 (384.2412802)

(-)-Pyrifolidine is an alkaloid from Aspidosperma quebracho-blanco (quebracho). Alkaloid from Aspidosperma quebracho-blanco (quebracho).

(+)-Aspidospermidine

12-ethyl-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6-triene

C19H26N2 (282.2095876)

(+)-Aspidospermidine is an alkaloid from Aspidosperma quebracho-blanco (quebracho

Alkaloid AQC2

1-ethyl-17-hydroxy-15-oxa-5,18-diazatetracyclo[14.3.1.0⁴,¹².0⁶,¹¹]icosa-4(12),6,8,10,17-pentaen-14-one

C19H22N2O3 (326.16303419999997)

Alkaloid AQC2 is an alkaloid AQC2 is an alkaloid from cell cultures of Aspidosperma quebracho-blanco (quebracho)

Lamuran

4H-INDOLO(2,3-A)PYRANO(3,4-G)QUINOLIZINE-1-CARBOXYLIC ACID, 4A,5,7,8,13,13B,14,14A-OCTAHYDRO-4-METHYL-, METHYL ESTER, (4S,4AS,13BS,14AS)-

C21H24N2O3 (352.17868339999995)

Tetrahydroalstonine is a heteropentacyclic compound that is (20alpha)-16,17-didehydro-18-oxayohimban which is substituted at position 16 by a methoxycarbonyl group and at position 19 by a methyl group. It is a metabolite found in several plant species. It has a role as a plant metabolite. It is a yohimban alkaloid, an organic heteropentacyclic compound and a methyl ester. It is a conjugate base of a tetrahydroalstonine(1+). Tetrahydroalstonine is a natural product found in Ochrosia elliptica, Tabernanthe iboga, and other organisms with data available. See also: Cats Claw (part of). A heteropentacyclic compound that is (20alpha)-16,17-didehydro-18-oxayohimban which is substituted at position 16 by a methoxycarbonyl group and at position 19 by a methyl group. It is a metabolite found in several plant species. D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents

Lichexanthone

C16H14O5 (286.0841194)

A member of the class of xanthones that is 9H-xanthen-9-one substituted by a hydroxy group at position 1, a methyl group at position 8 and methoxy groups at positions 3 and 6. It has been isolated from the bark of Cupania cinerea.

Syringaresinol

PHENOL, 4,4-(TETRAHYDRO-1H,3H-FURO(3,4-C)FURAN-1,4-DIYL)BIS(2,6-DIMETHOXY-, (1.ALPHA.,3A.ALPHA.,4.ALPHA.,6A.ALPHA.)-(+/-)-

C22H26O8 (418.1627596)

(+)-syringaresinol is the (7alpha,7alpha,8alpha,8alpha)-stereoisomer of syringaresinol. It has a role as an antineoplastic agent. It is an enantiomer of a (-)-syringaresinol. (+)-Syringaresinol is a natural product found in Dracaena draco, Diospyros eriantha, and other organisms with data available. See also: Acai fruit pulp (part of). The (7alpha,7alpha,8alpha,8alpha)-stereoisomer of syringaresinol.

Yohimbine

methyl (2S,13bS,14aS,1R,4aR)-2-hydroxy-1,2,3,4,5,8,14,13b,14a,4a-decahydrobenz o[1,2-g]indolo[2,3-a]quinolizinecarboxylate

C21H26N2O3 (354.19433260000005)

G - Genito urinary system and sex hormones > G04 - Urologicals > G04B - Urologicals > G04BE - Drugs used in erectile dysfunction C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C72900 - Adrenergic Antagonist D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D018674 - Adrenergic Antagonists D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D009184 - Mydriatics D000089162 - Genitourinary Agents > D064804 - Urological Agents CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 2282 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.556 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.553 Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM [1] Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. [3] in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice.[2] Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM [1] Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. [3] in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice.[2]

Quinidine

C20H24N2O2 (324.18376839999996)

Annotation level-1 Quinidine (15\\% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research[1][2][3][4]. Quinidine (15\% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research[1][2][3][4].

syringaresinol

4-[4-(4-hydroxy-3,5-dimethoxyphenyl)-hexahydrofuro[3,4-c]furan-1-yl]-2,6-dimethoxyphenol

C22H26O8 (418.1627596)

Rescinnamine

methyl (1R,15S,17R,18R,19S,20S)-6,18-dimethoxy-17-{[3-(3,4,5-trimethoxyphenyl)prop-2-enoyl]oxy}-3,13-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-2(10),4(9),5,7-tetraene-19-carboxylate

C35H42N2O9 (634.2890162)

Rescinnamine is an odorless white to cream colored crystalline powder. (NTP, 1992) Rescinnamine is a methyl ester, an organic heteropentacyclic compound and an indole alkaloid. It has a role as an antihypertensive agent. It derives from a hydride of a yohimban. Rescinnamine is a natural product found in Vinca major, Aspidosperma excelsum, and other organisms with data available. C - Cardiovascular system > C02 - Antihypertensives > C02A - Antiadrenergic agents, centrally acting > C02AA - Rauwolfia alkaloids C78274 - Agent Affecting Cardiovascular System > C270 - Antihypertensive Agent

Annotation level-1

(-)-Pyrifolidine

1-{12-ethyl-5,6-dimethoxy-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6-trien-8-yl}ethan-1-one

C23H32N2O3 (384.2412802)

1,4-Bis(3,4,5-trimethoxyphenyl)tetrahydro-1H,3H-furo[3,4-c]furan

C24H30O8 (446.194058)

Corynine

InChI=1\C21H26N2O3\c1-26-21(25)19-15-10-17-20-14(13-4-2-3-5-16(13)22-20)8-9-23(17)11-12(15)6-7-18(19)24\h2-5,12,15,17-19,22,24H,6-11H2,1H3\t12?,15?,17?,18-,19+\m0\s

C21H26N2O3 (354.19433260000005)

G - Genito urinary system and sex hormones > G04 - Urologicals > G04B - Urologicals > G04BE - Drugs used in erectile dysfunction C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C72900 - Adrenergic Antagonist D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D018674 - Adrenergic Antagonists D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D009184 - Mydriatics D000089162 - Genitourinary Agents > D064804 - Urological Agents Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM [1] Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. [3] in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice.[2] Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM [1] Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. [3] in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice.[2]