Exact Mass: 746.3576994

C42H50N8O5 (746.3903969999999)

Quine

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

C40H50N4O8S (746.334918)

Quinine Sulfate is the sulfate salt form of the quinidine alkaloid isolate quinine. Quinine has many mechanisms of action, including reduction of oxygen intake and carbohydrate metabolism; disruption of DNA replication and transcription via DNA intercalation; and reduction of the excitability of muscle fibers via alteration of calcium distribution. This agent also inhibits the drug efflux pump P-glycoprotein which is overexpressed in multi-drug resistant tumors and may improve the efficacy of some antineoplastic agents. (NCI04) An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose. It was used commonly and as a bitter and flavoring agent, and is still useful for the treatment of babesiosis. Quinine is also useful in some muscular disorders, especially nocturnal leg cramps and myotonia congenita, because of its direct effects on muscle membrane and sodium channels. The mechanisms of its antimalarial effects are not well understood. See also: Quinine (has active moiety) ... View More ... D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D018373 - Peripheral Nervous System Agents > D009465 - Neuromuscular Agents D002491 - Central Nervous System Agents > D000700 - Analgesics

1,3-Benzenediamine, N1,N1-bis[3-(diphenylamino)phenyl]-N3,N3-diphenyl-

C54H42N4 (746.3409292)

Quinidine sulfate

QUINIDINE SULFATE (2:1) (salt)

C40H50N4O8S (746.334918)

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 D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents D049990 - Membrane Transport Modulators

Pralmorelin

Fluoride ionophore I

C33H72F2Sn2 (746.3645756)

POTASSIUM HEXABROMOPLATINATE(IV)

Br6K2Pt (746.402217)

4,4,4' -Tris(N,N-diphenyl-amino)triphenylamine

4,4,4" -Tris(N,N-diphenyl-amino)triphenylamine

C54H42N4 (746.3409292)

Trimeprazine Tartrate

C40H50N4O6S2 (746.3171600000001)

D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist C78272 - Agent Affecting Nervous System > C267 - Antiemetic Agent

(1S,4S,7R,8S,11S,15S,18S,22S,25S)-4,18-bis[(2S)-butan-2-yl]-7-methyl-11,25-di(propan-2-yl)-6,20-dioxa-13,27-dithia-3,10,17,24,29,30,31,32-octazapentacyclo[24.2.1.15,8.112,15.119,22]dotriaconta-5(32),12(31),19(30),26(29)-tetraene-2,9,16,23-tetrone

(1S,4S,7R,8S,11S,15S,18S,22S,25S)-4,18-bis[(2S)-butan-2-yl]-7-methyl-11,25-di(propan-2-yl)-6,20-dioxa-13,27-dithia-3,10,17,24,29,30,31,32-octazapentacyclo[24.2.1.15,8.112,15.119,22]dotriaconta-5(32),12(31),19(30),26(29)-tetraene-2,9,16,23-tetrone

C35H54N8O6S2 (746.3607544000001)

Quinine sulfate (2:1)

C40H50N4O8S (746.334918)

D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D018373 - Peripheral Nervous System Agents > D009465 - Neuromuscular Agents D002491 - Central Nervous System Agents > D000700 - Analgesics

S-choloyl-4-phosphopantetheine(2-)

C35H59N2O11PS-2 (746.3576994)

[1-butanoyloxy-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (12Z,15Z,18Z,21Z)-tetracosa-12,15,18,21-tetraenoate

[1-hexanoyloxy-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (10Z,13Z,16Z,19Z)-docosa-10,13,16,19-tetraenoate

[1-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxy-3-octanoyloxypropan-2-yl] (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate

[1-decanoyloxy-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate

[1-dodecanoyloxy-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoate

[1-acetyloxy-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (14Z,17Z,20Z,23Z)-hexacosa-14,17,20,23-tetraenoate

[(2R)-1-decanoyloxy-3-[hydroxy-[(5R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropan-2-yl] (6E,9E,12E,15E)-octadeca-6,9,12,15-tetraenoate

[1-dodecanoyloxy-3-[hydroxy-[(5R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropan-2-yl] (7E,9E,11E,13E)-hexadeca-7,9,11,13-tetraenoate

[(2S)-2-decanoyloxy-3-[hydroxy-[(5S)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropyl] (6E,9E,12E,15E)-octadeca-6,9,12,15-tetraenoate

[(2S)-2-decanoyloxy-3-[hydroxy-[(5S)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropyl] (9E,11E,13E,15E)-octadeca-9,11,13,15-tetraenoate

[(2R)-1-decanoyloxy-3-[hydroxy-[(5R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropan-2-yl] (9E,11E,13E,15E)-octadeca-9,11,13,15-tetraenoate

[1-[(6E,9E)-dodeca-6,9-dienoyl]oxy-3-[hydroxy-[(5R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropan-2-yl] (4E,7E)-hexadeca-4,7-dienoate

[1-[(E)-dodec-5-enoyl]oxy-3-[hydroxy-[(5R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxypropan-2-yl] (9E,11E,13E)-hexadeca-9,11,13-trienoate

S-choloyl-4-phosphopantetheine(2-)

C35H59N2O11PS (746.3576994)

An S-acyl-4-phosphopantetheine obtained by deprotonation of the phosphate OH groups of S-choloyl-4-phosphopantetheine; major species at pH 7.3.

PI(28:4)

PI(18:1_10:3)

SMGDG O-28:5;O

C37H62O13S (746.3910922)

SQDG 28:4;O

C37H62O13S (746.3910922)

PG 20:2/11:3;O3

PG 31:5;O3

LPIM1 17:1

C32H59O17P (746.3489694)

PI O-27:6;O2

PI O-28:5;O

PI P-16:1/12:3;O

PI P-18:1/9:4;O2

PI P-20:1/8:3;O

PI 18:3/8:3;O2

PI 18:4/8:2;O2

PI 18:4/9:1;O

PI 20:2/7:3;O

PI 22:4/5:1;O

PI 22:5/4:1;O2

PI 26:6;O2

PI 27:5;O

PI 10:0_18:4

PI 24:4/4:0

PI 28:4

(1s,2s,5r,6s,8r,9s,10s,11r,15s,18r)-6,9,10,15,18-pentahydroxy-12,12-dimethyl-6-{2-[(1s,2s,5s,6r,8r,9s,10s,11r,15s,18r)-9,10,15,18-tetrahydroxy-12,12-dimethyl-7-oxo-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-6-yl]ethyl}-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-7-one

(1s,2s,5r,6s,8r,9s,10s,11r,15s,18r)-6,9,10,15,18-pentahydroxy-12,12-dimethyl-6-{2-[(1s,2s,5s,6r,8r,9s,10s,11r,15s,18r)-9,10,15,18-tetrahydroxy-12,12-dimethyl-7-oxo-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-6-yl]ethyl}-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-7-one

3-{[2-({15-[4-(acetyloxy)-4-(3,3-dimethyloxiran-2-yl)butan-2-yl]-13-hydroxy-7,7,12,16-tetramethyl-14-oxopentacyclo[9.7.0.0¹,³.0³,⁸.0¹²,¹⁶]octadec-10-en-6-yl}oxy)-4,5-dihydroxyoxan-3-yl]oxy}-3-oxopropanoic acid

3-{[2-({15-[4-(acetyloxy)-4-(3,3-dimethyloxiran-2-yl)butan-2-yl]-13-hydroxy-7,7,12,16-tetramethyl-14-oxopentacyclo[9.7.0.0¹,³.0³,⁸.0¹²,¹⁶]octadec-10-en-6-yl}oxy)-4,5-dihydroxyoxan-3-yl]oxy}-3-oxopropanoic acid

methyl (1s,12r,13r,15s,16r,20s)-16-[(1e)-2-[(1r,12r,13s,18s)-3,20-dimethyl-15-oxa-3,20-diazapentacyclo[10.7.1.0²,¹⁰.0⁴,⁹.0¹³,¹⁸]icosa-2(10),4,6,8,16-pentaen-17-yl]ethenyl]-12-ethyl-4-hydroxy-5,6-dimethoxy-14-oxa-8,17-diazahexacyclo[10.7.1.0¹,⁹.0²,⁷.0¹³,¹⁵.0¹⁷,²⁰]icosa-2(7),3,5,9-tetraene-10-carboxylate

methyl (1s,12r,13r,15s,16r,20s)-16-[(1e)-2-[(1r,12r,13s,18s)-3,20-dimethyl-15-oxa-3,20-diazapentacyclo[10.7.1.0²,¹⁰.0⁴,⁹.0¹³,¹⁸]icosa-2(10),4,6,8,16-pentaen-17-yl]ethenyl]-12-ethyl-4-hydroxy-5,6-dimethoxy-14-oxa-8,17-diazahexacyclo[10.7.1.0¹,⁹.0²,⁷.0¹³,¹⁵.0¹⁷,²⁰]icosa-2(7),3,5,9-tetraene-10-carboxylate

C44H50N4O7 (746.367931)

1,4',5'-tris(acetyloxy)-3',4-dihydroxy-7-methoxy-2,3',5a,6,6',9',9b-heptamethyl-8,10'-dioxo-2,3a,4,5,9,9a-hexahydro-1h-11'-oxaspiro[cyclopenta[a]naphthalene-3,2'-tricyclo[7.2.1.0¹,⁶]dodecan]-7'-yl acetate

1,4',5'-tris(acetyloxy)-3',4-dihydroxy-7-methoxy-2,3',5a,6,6',9',9b-heptamethyl-8,10'-dioxo-2,3a,4,5,9,9a-hexahydro-1h-11'-oxaspiro[cyclopenta[a]naphthalene-3,2'-tricyclo[7.2.1.0¹,⁶]dodecan]-7'-yl acetate

C39H54O14 (746.3513384)

3-(acetyloxy)-2-{[1-(2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl)-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-5-hydroxy-6-methyloxan-4-yl acetate

3-(acetyloxy)-2-{[1-(2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl)-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-5-hydroxy-6-methyloxan-4-yl acetate

[2,3,12-trihydroxy-4,6a,6b,11,12,14b-hexamethyl-8a-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}carbonyl)-1,2,3,4a,5,6,7,8,9,10,11,12a,14,14a-tetradecahydropicen-4-yl]methoxysulfonic acid

C36H58O14S (746.3547088)

4,18',19'-trihydroxy-5,7',9',13'-tetramethyl-15'-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-5'-oxaspiro[oxane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosan]-16'-yl benzoate

(2s,3r,4s,5s,6r)-6-{[(1r,2r,3as,3bs,8s,9ar,9br,11ar)-1-[(2r,4e)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-5-(acetyloxy)-4-hydroxy-2-methyloxan-3-yl acetate

(2s,3r,4s,5s,6r)-6-{[(1r,2r,3as,3bs,8s,9ar,9br,11ar)-1-[(2r,4e)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-5-(acetyloxy)-4-hydroxy-2-methyloxan-3-yl acetate

5-(acetyloxy)-2-{[1-(2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl)-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-4-hydroxy-6-methyloxan-3-yl acetate

5-(acetyloxy)-2-{[1-(2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl)-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-4-hydroxy-6-methyloxan-3-yl acetate

[(2r,3r,4r,4ar,6ar,6bs,8as,11r,12r,12as,14ar,14br)-2,3,12-trihydroxy-4,6a,6b,11,12,14b-hexamethyl-8a-({[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}carbonyl)-1,2,3,4a,5,6,7,8,9,10,11,12a,14,14a-tetradecahydropicen-4-yl]methoxysulfonic acid

[(2r,3r,4r,4ar,6ar,6bs,8as,11r,12r,12as,14ar,14br)-2,3,12-trihydroxy-4,6a,6b,11,12,14b-hexamethyl-8a-({[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}carbonyl)-1,2,3,4a,5,6,7,8,9,10,11,12a,14,14a-tetradecahydropicen-4-yl]methoxysulfonic acid

C36H58O14S (746.3547088)

(1r,2r)-1-(3,4-dimethoxyphenyl)-2-{4-[(1s,3s,4s,5s)-1-(4-{[(1r,2r)-1-(3,4-dimethoxyphenyl)-1-hydroxypropan-2-yl]oxy}-3-methoxyphenyl)-4,5-dimethyl-2,6-dioxabicyclo[3.1.0]hexan-3-yl]-2-methoxyphenoxy}propan-1-ol

(1r,2r)-1-(3,4-dimethoxyphenyl)-2-{4-[(1s,3s,4s,5s)-1-(4-{[(1r,2r)-1-(3,4-dimethoxyphenyl)-1-hydroxypropan-2-yl]oxy}-3-methoxyphenyl)-4,5-dimethyl-2,6-dioxabicyclo[3.1.0]hexan-3-yl]-2-methoxyphenoxy}propan-1-ol

C42H50O12 (746.33021)

(1s,1'r,2r,3s,3'r,3as,4r,4'r,5'r,5as,6'r,7's,9'r,9as,9bs)-1,4',5'-tris(acetyloxy)-3',4-dihydroxy-7-methoxy-2,3',5a,6,6',9',9b-heptamethyl-8,10'-dioxo-2,3a,4,5,9,9a-hexahydro-1h-11'-oxaspiro[cyclopenta[a]naphthalene-3,2'-tricyclo[7.2.1.0¹,⁶]dodecan]-7'-yl acetate

(1s,1'r,2r,3s,3'r,3as,4r,4'r,5'r,5as,6'r,7's,9'r,9as,9bs)-1,4',5'-tris(acetyloxy)-3',4-dihydroxy-7-methoxy-2,3',5a,6,6',9',9b-heptamethyl-8,10'-dioxo-2,3a,4,5,9,9a-hexahydro-1h-11'-oxaspiro[cyclopenta[a]naphthalene-3,2'-tricyclo[7.2.1.0¹,⁶]dodecan]-7'-yl acetate

C39H54O14 (746.3513384)

6,9,10,15,18-pentahydroxy-12,12-dimethyl-6-(2-{9,10,15,18-tetrahydroxy-12,12-dimethyl-7-oxo-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-6-yl}ethyl)-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-7-one

6,9,10,15,18-pentahydroxy-12,12-dimethyl-6-(2-{9,10,15,18-tetrahydroxy-12,12-dimethyl-7-oxo-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-6-yl}ethyl)-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-7-one

methyl 18',24-dihydroxy-19-methoxy-9-oxo-15'-oxa-4,8',17,19'-tetraazaspiro[heptacyclo[11.10.1.1¹,⁴.0⁷,¹¹.0¹⁷,²⁴.0¹⁸,²³.0¹¹,²⁵]pentacosane-15,17'-hexacyclo[10.9.1.0¹,⁹.0²,⁷.0¹²,¹⁶.0¹⁹,²²]docosane]-2',4',6',9',18,20,22-heptaene-10'-carboxylate

methyl 18',24-dihydroxy-19-methoxy-9-oxo-15'-oxa-4,8',17,19'-tetraazaspiro[heptacyclo[11.10.1.1¹,⁴.0⁷,¹¹.0¹⁷,²⁴.0¹⁸,²³.0¹¹,²⁵]pentacosane-15,17'-hexacyclo[10.9.1.0¹,⁹.0²,⁷.0¹²,¹⁶.0¹⁹,²²]docosane]-2',4',6',9',18,20,22-heptaene-10'-carboxylate

C44H50N4O7 (746.367931)

(1's,2r,2's,4s,4's,5s,7's,8'r,9's,12's,13'r,15'r,16'r,18'r,19'r)-4,18',19'-trihydroxy-5,7',9',13'-tetramethyl-15'-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-5'-oxaspiro[oxane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosan]-16'-yl benzoate

(1's,2r,2's,4s,4's,5s,7's,8'r,9's,12's,13'r,15'r,16'r,18'r,19'r)-4,18',19'-trihydroxy-5,7',9',13'-tetramethyl-15'-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-5'-oxaspiro[oxane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosan]-16'-yl benzoate

(2r,3s,4s,5s,6s)-2-{[(1r,2r,3as,3bs,8s,9ar,9br,11ar)-1-[(2r,4e)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-4-(acetyloxy)-5-hydroxy-6-methyloxan-3-yl acetate

(2r,3s,4s,5s,6s)-2-{[(1r,2r,3as,3bs,8s,9ar,9br,11ar)-1-[(2r,4e)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl]oxy}-4-(acetyloxy)-5-hydroxy-6-methyloxan-3-yl acetate

3-{[(2s,3r,4s,5r)-2-{[(1r,3r,6s,8r,12r,13r,15r,16r)-15-[(2r,4r)-4-(acetyloxy)-4-[(2s)-3,3-dimethyloxiran-2-yl]butan-2-yl]-13-hydroxy-7,7,12,16-tetramethyl-14-oxopentacyclo[9.7.0.0¹,³.0³,⁸.0¹²,¹⁶]octadec-10-en-6-yl]oxy}-4,5-dihydroxyoxan-3-yl]oxy}-3-oxopropanoic acid

3-{[(2s,3r,4s,5r)-2-{[(1r,3r,6s,8r,12r,13r,15r,16r)-15-[(2r,4r)-4-(acetyloxy)-4-[(2s)-3,3-dimethyloxiran-2-yl]butan-2-yl]-13-hydroxy-7,7,12,16-tetramethyl-14-oxopentacyclo[9.7.0.0¹,³.0³,⁸.0¹²,¹⁶]octadec-10-en-6-yl]oxy}-4,5-dihydroxyoxan-3-yl]oxy}-3-oxopropanoic acid