Exact Mass: 503.21620680000007

Exact Mass Matches: 503.21620680000007

Found 40 metabolites which its exact mass value is equals to given mass value 503.21620680000007, within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error 0.0002 dalton.

methyl (1S,2S,3R,5S,8R,9R,10R)-10-[(2R,3E,5E,7E)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylate

methyl (1S,2S,3R,5S,8R,9R,10R)-10-[(2R,3E,5E,7E)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylate

C26H33NO9 (503.21552080000004)


   

N-(4-Acetylphenyl)-2-[4-(2,6-dioxo-1,3-dipropyl-7H-purin-8-yl)phenoxy]acetamide

N-(4-Acetylphenyl)-2-(4-(2,3,6,7-tetrahydro-2,6-dioxo-1,3-dipropyl-1H-purin-8-yl)phenoxy)acetamide

C27H29N5O5 (503.21685840000004)


D018377 - Neurotransmitter Agents > D058905 - Purinergic Agents > D058914 - Purinergic Antagonists MRS-1706 is a potent and selective adenosine A2B receptor inverse agonist. MRS-1706 has Ki values of 1.39, 112, 157, and 230 nM for human A2B, A2A, A1 and A3 receptors respectively. MRS-1706 blocks adenosine-mediated cAMP induction[1][2].

   

(3aS)-5c-[(1R,2E,4E)-6-((E)-2,4-dioxo-pyrrolidin-3-ylidene)-6-hydroxy-1,3-dimethyl-hexa-2,4-dienyl]-2c,6t,9a-trimethyl-8-oxo-(9at)-octahydro-3ar,7c-epioxido-furo[3,2-b]oxocine-3c-carboxylic acid methyl ester|antibiotic Bu-2313-B|nocamycin-I

(3aS)-5c-[(1R,2E,4E)-6-((E)-2,4-dioxo-pyrrolidin-3-ylidene)-6-hydroxy-1,3-dimethyl-hexa-2,4-dienyl]-2c,6t,9a-trimethyl-8-oxo-(9at)-octahydro-3ar,7c-epioxido-furo[3,2-b]oxocine-3c-carboxylic acid methyl ester|antibiotic Bu-2313-B|nocamycin-I

C26H33NO9 (503.21552080000004)


   

Nocamycin I

Nocamycin I

C26H33NO9 (503.21552080000004)


An organic heterotricyclic compound and tetramic acid derivative originally isolated from an unidentified oligosporic actinomycete strain (no. E864-861) and found to be active against both Gram-positive and Gram-negative anaerobic bacteria as well as some aerobic bacteria such as Streptococci. The methyl ester of nocamycin E.

   

C27H29N5O5

NCGC00381190-01_C27H29N5O5_

C27H29N5O5 (503.21685840000004)


   

Cys Glu Pro Arg

(4S)-4-[(2R)-2-amino-3-sulfanylpropanamido]-5-[(2S)-2-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}pyrrolidin-1-yl]-5-oxopentanoic acid

C19H33N7O7S (503.21620680000007)


   

Cys Glu Arg Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-4-carboxybutanamido]-5-carbamimidamidopentanoyl]pyrrolidine-2-carboxylic acid

C19H33N7O7S (503.21620680000007)


   

Cys Pro Glu Arg

(4S)-4-{[(2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}-4-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}butanoic acid

C19H33N7O7S (503.21620680000007)


   

Cys Pro Arg Glu

(2S)-2-[(2S)-2-{[(2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}-5-carbamimidamidopentanamido]pentanedioic acid

C19H33N7O7S (503.21620680000007)


   

Cys Arg Glu Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-5-carbamimidamidopentanamido]-4-carboxybutanoyl]pyrrolidine-2-carboxylic acid

C19H33N7O7S (503.21620680000007)


   

Cys Arg Pro Glu

(2S)-2-{[(2S)-1-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-5-carbamimidamidopentanoyl]pyrrolidin-2-yl]formamido}pentanedioic acid

C19H33N7O7S (503.21620680000007)


   

Glu Cys Pro Arg

(4S)-4-amino-4-{[(2R)-1-[(2S)-2-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}pyrrolidin-1-yl]-1-oxo-3-sulfanylpropan-2-yl]carbamoyl}butanoic acid

C19H33N7O7S (503.21620680000007)


   

Glu Cys Arg Pro

(2S)-1-[(2S)-2-[(2R)-2-[(2S)-2-amino-4-carboxybutanamido]-3-sulfanylpropanamido]-5-carbamimidamidopentanoyl]pyrrolidine-2-carboxylic acid

C19H33N7O7S (503.21620680000007)


   

Glu Pro Cys Arg

(4S)-4-amino-5-[(2S)-2-{[(1R)-1-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}-2-sulfanylethyl]carbamoyl}pyrrolidin-1-yl]-5-oxopentanoic acid

C19H33N7O7S (503.21620680000007)


   

Glu Pro Arg Cys

(4S)-4-amino-5-[(2S)-2-{[(1S)-4-carbamimidamido-1-{[(1R)-1-carboxy-2-sulfanylethyl]carbamoyl}butyl]carbamoyl}pyrrolidin-1-yl]-5-oxopentanoic acid

C19H33N7O7S (503.21620680000007)


   

Glu Arg Cys Pro

(2S)-1-[(2R)-2-[(2S)-2-[(2S)-2-amino-4-carboxybutanamido]-5-carbamimidamidopentanamido]-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid

C19H33N7O7S (503.21620680000007)


   

Glu Arg Pro Cys

(4S)-4-amino-4-{[(2S)-5-carbamimidamido-1-[(2S)-2-{[(1R)-1-carboxy-2-sulfanylethyl]carbamoyl}pyrrolidin-1-yl]-1-oxopentan-2-yl]carbamoyl}butanoic acid

C19H33N7O7S (503.21620680000007)


   

Pro Cys Glu Arg

(4S)-4-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}-4-[(2R)-2-[(2S)-pyrrolidin-2-ylformamido]-3-sulfanylpropanamido]butanoic acid

C19H33N7O7S (503.21620680000007)


   

Pro Cys Arg Glu

(2S)-2-[(2S)-5-carbamimidamido-2-[(2R)-2-[(2S)-pyrrolidin-2-ylformamido]-3-sulfanylpropanamido]pentanamido]pentanedioic acid

C19H33N7O7S (503.21620680000007)


   

Pro Glu Cys Arg

(4S)-4-{[(1R)-1-{[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl}-2-sulfanylethyl]carbamoyl}-4-[(2S)-pyrrolidin-2-ylformamido]butanoic acid

C19H33N7O7S (503.21620680000007)


   

Pro Glu Arg Cys

(4S)-4-{[(1S)-4-carbamimidamido-1-{[(1R)-1-carboxy-2-sulfanylethyl]carbamoyl}butyl]carbamoyl}-4-[(2S)-pyrrolidin-2-ylformamido]butanoic acid

C19H33N7O7S (503.21620680000007)


   

Pro Arg Cys Glu

(2S)-2-[(2R)-2-[(2S)-5-carbamimidamido-2-[(2S)-pyrrolidin-2-ylformamido]pentanamido]-3-sulfanylpropanamido]pentanedioic acid

C19H33N7O7S (503.21620680000007)


   

Pro Arg Glu Cys

(4S)-4-[(2S)-5-carbamimidamido-2-[(2S)-pyrrolidin-2-ylformamido]pentanamido]-4-{[(1R)-1-carboxy-2-sulfanylethyl]carbamoyl}butanoic acid

C19H33N7O7S (503.21620680000007)


   

Arg Cys Glu Pro

(2S)-1-[(2S)-2-[(2R)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-3-sulfanylpropanamido]-4-carboxybutanoyl]pyrrolidine-2-carboxylic acid

C19H33N7O7S (503.21620680000007)


   

Arg Cys Pro Glu

(2S)-2-{[(2S)-1-[(2R)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}pentanedioic acid

C19H33N7O7S (503.21620680000007)


   

Arg Glu Cys Pro

(2S)-1-[(2R)-2-[(2S)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-4-carboxybutanamido]-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid

C19H33N7O7S (503.21620680000007)


   

Arg Glu Pro Cys

(4S)-4-[(2S)-2-amino-5-carbamimidamidopentanamido]-5-[(2S)-2-{[(1R)-1-carboxy-2-sulfanylethyl]carbamoyl}pyrrolidin-1-yl]-5-oxopentanoic acid

C19H33N7O7S (503.21620680000007)


   

Arg Pro Cys Glu

(2S)-2-[(2R)-2-{[(2S)-1-[(2S)-2-amino-5-carbamimidamidopentanoyl]pyrrolidin-2-yl]formamido}-3-sulfanylpropanamido]pentanedioic acid

C19H33N7O7S (503.21620680000007)


   

Arg Pro Glu Cys

(4S)-4-{[(2S)-1-[(2S)-2-amino-5-carbamimidamidopentanoyl]pyrrolidin-2-yl]formamido}-4-{[(1R)-1-carboxy-2-sulfanylethyl]carbamoyl}butanoic acid

C19H33N7O7S (503.21620680000007)


   

Trimebutine Maleate

Trimebutine Maleate

C26H33NO9 (503.21552080000004)


D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D010276 - Parasympatholytics D005765 - Gastrointestinal Agents Trimebutine maleate is an orally anti-tumor agent. Trimebutine maleate selectively suppresses stemness and proliferation of ovarian cancer stem cells (CSCs). Trimebutine maleate reduces the colonic muscle hypercontractility, modulates gastrointestinal motility, induces apoptosis and can be used for the research of glioma/glioblastoma and irritable bowel syndrome[1][2][3][4][5][6].

   

methyl (3R,5S,9R,10R)-10-[(2R,3E,5E,7Z)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylate

methyl (3R,5S,9R,10R)-10-[(2R,3E,5E,7Z)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylate

C26H33NO9 (503.21552080000004)


   

ST 24:6;O7;Gly

ST 24:6;O7;Gly

C26H33NO9 (503.21552080000004)


   

ST 18:5;O4;HexNAc

ST 18:5;O4;HexNAc

C26H33NO9 (503.21552080000004)


   

(1r,4r,8s,10r,12r,13s,16s,17r)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylbutanoate

(1r,4r,8s,10r,12r,13s,16s,17r)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylbutanoate

C26H33NO9 (503.21552080000004)


   

(1r,4r,8s,10r,12r,13s,16s,17s)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylbutanoate

(1r,4r,8s,10r,12r,13s,16s,17s)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylbutanoate

C26H33NO9 (503.21552080000004)


   

ethyl 4-[(1-{10-acetyl-7-ethoxy-3,11,13-trihydroxy-2,12-dimethyl-5-oxo-8-oxatricyclo[7.4.0.0²,⁷]trideca-1(13),3,9,11-tetraen-4-yl}ethylidene)amino]butanoate

ethyl 4-[(1-{10-acetyl-7-ethoxy-3,11,13-trihydroxy-2,12-dimethyl-5-oxo-8-oxatricyclo[7.4.0.0²,⁷]trideca-1(13),3,9,11-tetraen-4-yl}ethylidene)amino]butanoate

C26H33NO9 (503.21552080000004)


   

methyl 2-{7-[(3e,5e)-7-(2-hydroxy-4-oxo-1,5-dihydropyrrol-3-yl)-4-methyl-7-oxohepta-3,5-dien-2-yl]-1,6-dimethyl-4-oxo-8,9-dioxaspiro[bicyclo[3.3.1]nonane-2,2'-oxiran]-3'-yl}propanoate

methyl 2-{7-[(3e,5e)-7-(2-hydroxy-4-oxo-1,5-dihydropyrrol-3-yl)-4-methyl-7-oxohepta-3,5-dien-2-yl]-1,6-dimethyl-4-oxo-8,9-dioxaspiro[bicyclo[3.3.1]nonane-2,2'-oxiran]-3'-yl}propanoate

C26H33NO9 (503.21552080000004)


   

methyl 2-{7-[(3e,5e)-7-hydroxy-7-(2-hydroxy-4-oxo-5h-pyrrol-3-ylidene)-4-methylhepta-3,5-dien-2-yl]-1,6-dimethyl-4-oxo-8,9-dioxaspiro[bicyclo[3.3.1]nonane-2,2'-oxiran]-3'-yl}propanoate

methyl 2-{7-[(3e,5e)-7-hydroxy-7-(2-hydroxy-4-oxo-5h-pyrrol-3-ylidene)-4-methylhepta-3,5-dien-2-yl]-1,6-dimethyl-4-oxo-8,9-dioxaspiro[bicyclo[3.3.1]nonane-2,2'-oxiran]-3'-yl}propanoate

C26H33NO9 (503.21552080000004)


   

ethyl 4-({1-[(2s,7r)-10-acetyl-7-ethoxy-3,11,13-trihydroxy-2,12-dimethyl-5-oxo-8-oxatricyclo[7.4.0.0²,⁷]trideca-1(13),3,9,11-tetraen-4-yl]ethylidene}amino)butanoate

ethyl 4-({1-[(2s,7r)-10-acetyl-7-ethoxy-3,11,13-trihydroxy-2,12-dimethyl-5-oxo-8-oxatricyclo[7.4.0.0²,⁷]trideca-1(13),3,9,11-tetraen-4-yl]ethylidene}amino)butanoate

C26H33NO9 (503.21552080000004)


   

17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylbutanoate

17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylbutanoate

C26H33NO9 (503.21552080000004)