Exact Mass: 456.2776636

Exact Mass Matches: 456.2776636

Found 500 metabolites which its exact mass value is equals to given mass value 456.2776636, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Phytyl diphosphate

{[hydroxy({[(2E)-3,7,11,15-tetramethylhexadec-2-en-1-yl]oxy})phosphoryl]oxy}phosphonic acid

C20H42O7P2 (456.2405642)

Phytyl diphosphate participates in biosynthesis of steroids as well as porphyrin and metabolism. Phytyl diphosphate is produced from Geranylgeranyl diphosphate in biosynthesis of steroids. [HMDB]. Phytyl diphosphate is found in many foods, some of which are highbush blueberry, wild leek, evergreen huckleberry, and allium (onion). Phytyl diphosphate participates in biosynthesis of steroids as well as porphyrin and metabolism. Phytyl diphosphate is produced from Geranylgeranyl diphosphate in biosynthesis of steroids.

D1927

(2S)-N-[3,3-dimethyl-1-(methylamino)-1-oxobutan-2-yl]-2-[[4-(2,5-dioxopyrrolidin-1-yl)-2-sulfanylbutanoyl]amino]-4-methylpentanamide

C21H36N4O5S (456.24062860000004)

Lucidenic acid F

4-{2,6,6,11,15-pentamethyl-5,9,12,17-tetraoxotetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-1(10)-en-14-yl}pentanoic acid

C27H36O6 (456.2511756)

Lucidenic acid F is found in mushrooms. Lucidenic acid F is a constituent of Ganoderma lucidum (reishi). Constituent of Ganoderma lucidum (reishi). Lucidenic acid F is found in mushrooms.

Lucidenolactone

9-hydroxy-2,6,6,11,15-pentamethyl-14-(2-methyl-5-oxooxolan-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-1(10)-ene-5,12,17-trione

C27H36O6 (456.2511756)

Metabolite of Ganoderma lucidum (reishi). Lucidenolactone is found in mushrooms. Lucidenolactone is found in mushrooms. Metabolite of Ganoderma lucidum (reishi

Sulfolithocholic acid

(4R)-4-[(1S,2S,5R,10R,11S,14R,15R)-2,15-dimethyl-5-(sulfooxy)tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-14-yl]pentanoic acid

C24H40O6S (456.25454600000006)

Sulfolithocholic acid is a bile acid. Bile acids are steroid acids found predominantly in the bile of mammals. The distinction between different bile acids is minute, depending only on the presence or absence of hydroxyl groups on positions 3, 7, and 12. Bile acids are physiological detergents that facilitate excretion, absorption, and transport of fats and sterols in the intestine and liver. Bile acids are also steroidal amphipathic molecules derived from the catabolism of cholesterol. They modulate bile flow and lipid secretion, are essential for the absorption of dietary fats and vitamins, and have been implicated in the regulation of all the key enzymes involved in cholesterol homeostasis. Bile acids recirculate through the liver, bile ducts, small intestine and portal vein to form an enterohepatic circuit. They exist as anions at physiological pH and, consequently, require a carrier for transport across the membranes of the enterohepatic tissues. The unique detergent properties of bile acids are essential for the digestion and intestinal absorption of hydrophobic nutrients. Bile acids have potent toxic properties (e.g. membrane disruption) and there are a plethora of mechanisms to limit their accumulation in blood and tissues (PMID:11316487, 16037564, 12576301, 11907135). A bile acid. Bile acids are steroid acids found predominantly in bile of mammals. The distinction between different bile acids is minute, depends only on presence or absence of hydroxyl groups on positions 3, 7, and 12.

Rigin

(2S)-2-({[(2S)-1-[(2S)-2-[(2-amino-1-hydroxyethylidene)amino]-4-(C-hydroxycarbonimidoyl)butanoyl]pyrrolidin-2-yl](hydroxy)methylidene}amino)-5-carbamimidamidopentanoate

C18H32N8O6 (456.2444692)

Rigin (glycyl-L-glutaminyl-L-prolyl-L-arginine) is a tetrapeptide with functions similar to those of tuftsin. [HMDB] Rigin (glycyl-L-glutaminyl-L-prolyl-L-arginine) is a tetrapeptide with functions similar to those of tuftsin.

N-Docosahexaenoyl Glutamine

4-(C-Hydroxycarbonimidoyl)-2-[(1-hydroxydocosa-4,7,10,13,16,19-hexaen-1-ylidene)amino]butanoate

C27H40N2O4 (456.29879200000005)

N-docosahexaenoyl glutamine belongs to the class of compounds known as N-acylamides. These are molecules characterized by a fatty acyl group linked to a primary amine by an amide bond. More specifically, it is a Docosahexaenoyl amide of Glutamine. It is believed that there are more than 800 types of N-acylamides in the human body. N-acylamides fall into several categories: amino acid conjugates (e.g., those acyl amides conjugated with amino acids), neurotransmitter conjugates (e.g., those acylamides conjugated with neurotransmitters), ethanolamine conjugates (e.g., those acylamides conjugated to ethanolamine), and taurine conjugates (e.g., those acyamides conjugated to taurine). N-Docosahexaenoyl Glutamine is an amino acid conjugate. N-acylamides can be classified into 9 different categories depending on the size of their acyl-group: 1) short-chain N-acylamides; 2) medium-chain N-acylamides; 3) long-chain N-acylamides; and 4) very long-chain N-acylamides; 5) hydroxy N-acylamides; 6) branched chain N-acylamides; 7) unsaturated N-acylamides; 8) dicarboxylic N-acylamides and 9) miscellaneous N-acylamides. N-Docosahexaenoyl Glutamine is therefore classified as a very long chain N-acylamide. N-acyl amides have a variety of signaling functions in physiology, including in cardiovascular activity, metabolic homeostasis, memory, cognition, pain, motor control and others (PMID: 15655504). N-acyl amides have also been shown to play a role in cell migration, inflammation and certain pathological conditions such as diabetes, cancer, neurodegenerative disease, and obesity (PMID: 23144998; PMID: 25136293; PMID: 28854168).N-acyl amides can be synthesized both endogenously and by gut microbiota (PMID: 28854168). N-acylamides can be biosynthesized via different routes, depending on the parent amine group. N-acyl ethanolamines (NAEs) are formed via the hydrolysis of an unusual phospholipid precursor, N-acyl-phosphatidylethanolamine (NAPE), by a specific phospholipase D. N-acyl amino acids are synthesized via a circulating peptidase M20 domain containing 1 (PM20D1), which can catalyze the bidirectional the condensation and hydrolysis of a variety of N-acyl amino acids. The degradation of N-acylamides is largely mediated by an enzyme called fatty acid amide hydrolase (FAAH), which catalyzes the hydrolysis of N-acylamides into fatty acids and the biogenic amines. Many N-acylamides are involved in lipid signaling system through interactions with transient receptor potential channels (TRP). TRP channel proteins interact with N-acyl amides such as N-arachidonoyl ethanolamide (Anandamide), N-arachidonoyl dopamine and others in an opportunistic fashion (PMID: 23178153). This signaling system has been shown to play a role in the physiological processes involved in inflammation (PMID: 25136293). Other N-acyl amides, including N-oleoyl-glutamine, have also been characterized as TRP channel antagonists (PMID: 29967167). N-acylamides have also been shown to have G-protein-coupled receptors (GPCRs) binding activity (PMID: 28854168). The study of N-acylamides is an active area of research and it is likely that many novel N-acylamides will be discovered in the coming years. It is also likely that many novel roles in health and disease will be uncovered for these molecules.

Rhodamine B hydrazide

2-amino-3,6-bis(diethylamino)-2,3-dihydrospiro[isoindole-1,9-xanthene]-3-one

C28H32N4O2 (456.25251319999995)

N-[(2S)-1-[[(2S)-1-Amino-1-oxopropan-2-yl]amino]-3-naphthalen-2-yl-1-oxopropan-2-yl]-N'-hydroxy-2-(2-methylpropyl)butanediamide

2-[(Dihydroxycarbonimidoyl)methyl]-N-(1-{[1-(C-hydroxycarbonimidoyl)ethyl]-C-hydroxycarbonimidoyl}-2-(naphthalen-2-yl)ethyl)-4-methylpentanimidate

C24H32N4O5 (456.2372582)

Zatebradine

1,3,4,5-Tetrahydro-7,8-dimethoxy-3-(3-((2-(3,4-dimethoxyphenyl)ethyl)methylimino)propyl)-2H-3-benzazepin-2-one hydrochloride

C26H36N2O5 (456.2624086)

Ganolactone B

C27H36O6 (456.2511756)

Aszonapyrone A

C28H40O5 (456.28755900000004)

1-Acetyl-17-(3,3-dimethyloxiranyl)-1,2,3,8a,9,14,15,16a-octahydro-9-methyl-13,16-methano-8H,16H-pyrrolo[2,3:2,3]pyrido[4,3-o]quinindoline

C28H32N4O2 (456.25251319999995)

Methoxybifurcarenone

(+)-Methoxybifurcarenone

C28H40O5 (456.28755900000004)

Chabrolohydroxybenzoquinone B

C28H40O5 (456.28755900000004)

14-Methoxyamentol chromane

(-)-14-Methoxyamentol chromane

C28H40O5 (456.28755900000004)

13Z-Labdene-8alpha,15,16-triol 8-beta-L-xylopyranoside

C25H44O7 (456.3086874)

20(21)-Dehydrolucidenic acid A

(+)-20(21)-Dehydrolucidenic acid A

C27H36O6 (456.2511756)

20(21)-Dehydrolucidenic acid A is a natural product found in Ganoderma sinense and Ganoderma lucidum with data available.

Strongylophorine 26

C27H36O6 (456.2511756)

Mooloolabene D

C28H40O5 (456.28755900000004)

Malayenolide C

C27H36O6 (456.2511756)

Ypaoamide

C26H36N2O5 (456.2624086)

Manoalide monoacetate

C28H40O5 (456.28755900000004)

3-deoxymethylnimbidate

(+)-3-Deoxymethylnimbidate

C27H36O6 (456.2511756)

Chabrolohydroxybenzoquinone D

C28H40O5 (456.28755900000004)

23-desmethyllimocin B

C28H40O5 (456.28755900000004)

[(3R,4S,8S,8aS)-3-hydroxy-6,8a-dimethyl-8-[(Z)-2-methylbut-2-enoyl]oxy-3-propan-2-yl-1,2,3a,4,5,8-hexahydroazulen-4-yl] 4-hydroxybenzoate

C27H36O6 (456.2511756)

11-O-acetyl-8-epi-torilolone 8-O-beta-D-glucopyranoside

C23H36O9 (456.2359206)

24,25-dihydro-27-desoxywithaferin A|27-desoxy-24,25-dihydrowithaferin A

C28H40O5 (456.28755900000004)

(20R,22R)-3beta,20-dihydroxy-1-oxowitha-5,24-dienolide|3beta,20alphaF-dihydroxy-1-oxo-(22R)-witha-5,24-dienolide|3beta,20alphaF-dihydroxy-1-oxo-20R,22R-witha-5,24-dienolide

C28H40O5 (456.28755900000004)

euphoractin C|euphoractine C

C27H36O6 (456.2511756)

2,3-dihydrojaborosalactone A

C28H40O5 (456.28755900000004)

TimTec1_001533

C27H36O6 (456.2511756)

Ratjadone A, Synthetic

C28H40O5 (456.28755900000004)

C28H40O5

C28H40O5 (456.28755900000004)

6-Bromo-5,9-pentacosadienoic acid

C25H45BrO2 (456.260273)

(7R,8R)-7-hydroxy-3-(4-hydroxy-2-methyl-6-oxocyclohexenyl)-7-methyl-8-(3-methyl-2-oxononyl)-7,8-dihydro-isochromene-6-one|cohaerin F

C27H36O6 (456.2511756)

Taonia peroxylactone

C28H40O5 (456.28755900000004)

12alpha-acetoxy-24-methyl-24-oxoscalar-16-en-22,25-dial

C28H40O5 (456.28755900000004)

Withatatulin

C28H40O5 (456.28755900000004)

neobalearone

C28H40O5 (456.28755900000004)

C25H41ClO5

C25H41ClO5 (456.26423660000006)

15-hydroxy-13-epi-manoyl oxide-14-O-alpha-L-arabinopyranoside|tarapacol-14-O-alpha-L-arabinopyranoside

C25H44O7 (456.3086874)

2,3-Dihydro-(4beta,22R)-4,27-Dihydroxy-1-oxowitha-2,5,24-trienolide

C28H40O5 (456.28755900000004)

(1S,4R,7S,8aR)-4-((2E,4E)-6,8-dimethyldeca-2,4-dienyloxy)-8a-methyl-6-oxo-7-(3-oxoprop-1-en-2-yl)-1,2,3,4,6,7,8,8a-octahydronaphthalene-1-carboxylic acid|07H239-A

C27H36O6 (456.2511756)

C27H36O6

C27H36O6 (456.2511756)

8-methoxy-9-hydroxy-3,10-diheptyl-2H,5H-pyran[5,6-c][1]benzopyran-2,5-dione|fordianin B

C27H36O6 (456.2511756)

amentadione 1-methyl ether

C28H40O5 (456.28755900000004)

Isostrictaketal|Strictaketal

C28H40O5 (456.28755900000004)

Tamariscolone

C28H40O5 (456.28755900000004)

22-acetoxy-24-methyl-12,24-dioxoscalar-16-en-25-al

C28H40O5 (456.28755900000004)

NSC97868

C28H40O5 (456.28755900000004)

2-[12-(3,4-Methylenedioxyphenyl)dodecyl]-4-hydroxy-2,3,4,6,7,8-hexahydro-5H-1-benzopyran-5-one

C28H40O5 (456.28755900000004)

balearone

C28H40O5 (456.28755900000004)

amentol 1-methyl ether

C28H40O5 (456.28755900000004)

5,7-dihydroxy-4-(1-hydroxypropyl)-6-(2-methyl-1-oxobutyl)-8-(3,7-dimethyl-2,6-octadienyl)-2H-benzopyran-2-one|kayeassamin C

C27H36O6 (456.2511756)

Sch 420789

C27H36O6 (456.2511756)

24,25-Didehydro-(4beta,5beta,6beta,22R,24S,25R)-4-Hydroxy-5,6-epoxy-1-oxowithanolide

C28H40O5 (456.28755900000004)

6alpha-hydroxy-17-phenylacetoxy-18-oxo-kolav-3-en-15-ol

C28H40O5 (456.28755900000004)

17-formyl-19-hydroxy-11-methoxy-3,15,20-trimethyl-corynane-16-carboxylic acid methyl ester

C26H36N2O5 (456.2624086)

2,3-dihydro-5,6-desoxywithaferin A

C28H40O5 (456.28755900000004)

(-)-5,7-dihydroxy-4-(1S-hydroxypropyl)-6-(3-methyl-1-oxobutyl)-8-(3,7-dimethyl-2,6-octadienyl)-2H-benzopyran-2-one|kayeassamin D

C27H36O6 (456.2511756)

Mzikonol

C28H40O5 (456.28755900000004)

12alpha-hydroxy-5,13-dioxoisohalidrol|12beta-hydroxy-513-dioxoisohalidrol

C28H40O5 (456.28755900000004)

Cortistatin L

C30H36N2O2 (456.2776636)

Chevalone C

C28H40O5 (456.28755900000004)

chevalone B

C28H40O5 (456.28755900000004)

anthogorgiene F

C31H36O3 (456.26643060000004)

eremoxylarin A

C27H36O6 (456.2511756)

withalongolide O

C27H36O6 (456.2511756)

methyl (2beta,12beta,19alpha)-1-[(2E)-3-phenylprop-2-enoyl]aspidospermidin-21-oate|N1-cinnamoyl-12-demethoxycylindrocarine

C29H32N2O3 (456.2412802)

toonacilianin C

C27H36O6 (456.2511756)

euphoractin F

C27H36O6 (456.2511756)

kadcotrione B

C28H40O5 (456.28755900000004)

NCI60_004840

C27H36O6 (456.2511756)

surangin D

C27H36O6 (456.2511756)

MS000152729

C28H40O5 (456.28755900000004)

euphoractin M

C27H36O6 (456.2511756)

penicillitone

C28H40O5 (456.28755900000004)

Siraitic acid D

C28H40O5 (456.28755900000004)

cladobotric acid E

C27H36O6 (456.2511756)

(7S,11S,12S,14R)-4-methoxyamentol

C28H40O5 (456.28755900000004)

Nakijiquinone H

C26H40N4O3 (456.310025)

(3E,11E)-6,19-epoxy-17,20-dihydroxycembra-3,6,8(19),11,15-pentaene 17,20-dibutanoate

C28H40O5 (456.28755900000004)

5-deoxyingenol 3-angelate-20-acetate

C27H36O6 (456.2511756)

SCHEMBL17866704

C24H32N4O5 (456.2372582)

strictaepoxide

C28H40O5 (456.28755900000004)

subtrifloralactone D

C27H36O6 (456.2511756)

3-[(2E,6E,10E)-11-carboxy-3,7,15-trimethyl-2,6,10,14-hexadecatetraenyl]-4,5-dihydroxybenzoic acid

C27H36O6 (456.2511756)

subtrifloralactone E

C27H36O6 (456.2511756)

SCHEMBL9971128

C28H40O5 (456.28755900000004)

Ac-Luffarin R|luffarin-S

C27H36O6 (456.2511756)

9-Hydroxy-gamma-geraniol-1-O-(6-acetyl-3-angelyl)-beta-D-glucopyranoside|9-Hydroxy-gamma-geraniol-1-O-<6-acetyl-3-angelyl>-beta-D-glucopyranoside

C23H36O9 (456.2359206)

Estra-1,3,5(10)-triene-3,16|A,17|A-triol tripropionate

C27H36O6 (456.2511756)

7-O-(alpha-glucosyl)-cineromycin B

C23H36O9 (456.2359206)

(+/-)-Xyloketal A

C27H36O6 (456.2511756)

2,6-diheptyl-3,6-dihydroxy-7-methoxy-dibenzofuran-1,4-dione|fordianaquinone B

C27H36O6 (456.2511756)

Siraitic acid E

C28H40O5 (456.28755900000004)

Tyr Lys Phe

C24H32N4O5 (456.2372582)

tyrosylphenylalanyllysine

C24H32N4O5 (456.2372582)

H-LYS-PHE-TYR-OH

C24H32N4O5 (456.2372582)

Phe Lys Tyr

C24H32N4O5 (456.2372582)

phenylalanyltyrosyllysine

C24H32N4O5 (456.2372582)

Lys Tyr Phe

C24H32N4O5 (456.2372582)

Lucidenic acid F

(4R)-4-[(5R,10S,13R,14R,17R)-4,4,10,13,14-pentamethyl-3,7,11,15-tetraoxo-2,5,6,12,16,17-hexahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoic acid

C27H36O6 (456.2511756)

Lucidenic acid F is a triterpenoid. Lucidenic acid F is a natural product found in Ganoderma lucidum with data available.

C27H36O6_1-Naphthalenecarboxylic acid, 8-(benzoyloxy)decahydro-7-hydroxy-5-[(3Z)-5-hydroxy-3-methyl-3-penten-1-yl]-1,4a-dimethyl-6-methylene

NCGC00380497-01_C27H36O6_1-Naphthalenecarboxylic acid, 8-(benzoyloxy)decahydro-7-hydroxy-5-[(3Z)-5-hydroxy-3-methyl-3-penten-1-yl]-1,4a-dimethyl-6-methylene-

C27H36O6 (456.2511756)

C27H36O6_Benzoic acid, 4-hydroxy-, (3R,4S,8S,8aS)-1,2,3,3a,4,5,8,8a-octahydro-3-hydroxy-6,8a-dimethyl-3-(1-methylethyl)-8-[[(2Z)-2-methyl-1-oxo-2-buten-1-yl]oxy]-4-azulenyl ester

NCGC00180409-03_C27H36O6_Benzoic acid, 4-hydroxy-, (3R,4S,8S,8aS)-1,2,3,3a,4,5,8,8a-octahydro-3-hydroxy-6,8a-dimethyl-3-(1-methylethyl)-8-[[(2Z)-2-methyl-1-oxo-2-buten-1-yl]oxy]-4-azulenyl ester

C27H36O6 (456.2511756)

C28H40O5

NCGC00380981-01_C28H40O5_

C28H40O5 (456.28755900000004)

C27H36O6_Benzoic acid, 4-hydroxy-, 1,2,3,3a,4,5,8,8a-octahydro-3-hydroxy-6,8a-dimethyl-3-(1-methylethyl)-8-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]oxy]-4-azulenyl ester

NCGC00381251-01_C27H36O6_Benzoic acid, 4-hydroxy-, 1,2,3,3a,4,5,8,8a-octahydro-3-hydroxy-6,8a-dimethyl-3-(1-methylethyl)-8-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]oxy]-4-azulenyl ester

C27H36O6 (456.2511756)

3a-Sulfooxy-5b-cholanic acid

C24H40O6S (456.25454600000006)

BA-139-150. In-source decay; 1 microL of the bile acid in MeOH solution was flow injected. Sampling interval was 1 Hz.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 17HP8021 (2017) to the MassBank database committee of the Mass Spectrometry Society of Japan. BA-139-120. In-source decay; 1 microL of the bile acid in MeOH solution was flow injected. Sampling interval was 1 Hz.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 17HP8021 (2017) to the MassBank database committee of the Mass Spectrometry Society of Japan. BA-139-90. In-source decay; 1 microL of the bile acid in MeOH solution was flow injected. Sampling interval was 1 Hz.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 17HP8021 (2017) to the MassBank database committee of the Mass Spectrometry Society of Japan. BA-139-60. In-source decay; 1 microL of the bile acid in MeOH solution was flow injected. Sampling interval was 1 Hz.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 17HP8021 (2017) to the MassBank database committee of the Mass Spectrometry Society of Japan. BA-139-30. In-source decay; 1 microL of the bile acid in MeOH solution was flow injected. Sampling interval was 1 Hz.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 17HP8021 (2017) to the MassBank database committee of the Mass Spectrometry Society of Japan.

SLCA - Sulfolithocholic acid

C24H40O6S (456.25454600000006)

Ala Asn Pro Arg

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-aminopropanamido]-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-5-carbamimidamidopentanoic acid

C18H32N8O6 (456.2444692)

Ala Asn Arg Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-aminopropanamido]-3-carbamoylpropanamido]-5-carbamimidamidopentanoyl]pyrrolidine-2-carboxylic acid

C18H32N8O6 (456.2444692)

Ala Pro Asn Arg

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-aminopropanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanamido]-5-carbamimidamidopentanoic acid

C18H32N8O6 (456.2444692)

Ala Pro Arg Asn

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-aminopropanoyl]pyrrolidin-2-yl]formamido}-5-carbamimidamidopentanamido]-3-carbamoylpropanoic acid

C18H32N8O6 (456.2444692)

Ala Arg Asn Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-aminopropanamido]-5-carbamimidamidopentanamido]-3-carbamoylpropanoyl]pyrrolidine-2-carboxylic acid

C18H32N8O6 (456.2444692)

Ala Arg Pro Asn

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-aminopropanamido]-5-carbamimidamidopentanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanoic acid

C18H32N8O6 (456.2444692)

Asp Ile Ile Pro

(2S)-1-[(2S,3S)-2-[(2S,3S)-2-[(2S)-2-amino-3-carboxypropanamido]-3-methylpentanamido]-3-methylpentanoyl]pyrrolidine-2-carboxylic acid