Classification Term: 170687

3-acyl tetramic acids (ontology term: 3aea69c88f92321f36924c53d9b45204)

found 21 associated metabolites at sub_class metabolite taxonomy ontology rank level.

Ancestor: Ornithine alkaloids

Child Taxonomies: There is no child term of current ontology term.

Melophlin R

Melophlin R

C21H37NO3 (351.27732920000005)


A member of the class of pyrrolidin-2-ones that is 1,5-dimethylpyrrolidine-2,4-dione substituted by a 1-hydroxy-12-methyltetradecylidene moiety at position 3. Isolated from the marine sponge Melophlus sarasinorum and other species of genus Melophlus, it exhibits cytotoxicity against murine leukemia cell line.

   

(2s,3r,4r,5r,6r)-6-{[(11z)-24-[(3e,5r)-5-(carboxymethyl)-1-methyl-2,4-dioxopyrrolidin-3-ylidene]-24-hydroxytetracos-11-en-1-yl]oxy}-4,5-dihydroxy-3-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxane-2-carboxylic acid

(2s,3r,4r,5r,6r)-6-{[(11z)-24-[(3e,5r)-5-(carboxymethyl)-1-methyl-2,4-dioxopyrrolidin-3-ylidene]-24-hydroxytetracos-11-en-1-yl]oxy}-4,5-dihydroxy-3-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxane-2-carboxylic acid

C43H71NO17 (873.4721755999999)


   

3-[(2r)-4-[(2e,4e,6e,8e,10e)-dodeca-2,4,6,8,10-pentaenoyl]-3-hydroxy-1-methyl-5-oxo-2h-pyrrol-2-yl]propanoic acid

3-[(2r)-4-[(2e,4e,6e,8e,10e)-dodeca-2,4,6,8,10-pentaenoyl]-3-hydroxy-1-methyl-5-oxo-2h-pyrrol-2-yl]propanoic acid

C20H23NO5 (357.15761480000003)


   

(5z)-3-[(2e,20e,24e)-31-{[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy}-1,5,7,11,13,17,19,26,27,29,35,37,41,43-tetradecahydroxy-2,10,12,18,20,22,24,32,40,42,44-undecamethyl-23-oxopentatetraconta-2,20,24-trien-1-ylidene]-1-methyl-5-(2-methylpropylidene)pyrrolidine-2,4-dione

(5z)-3-[(2e,20e,24e)-31-{[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy}-1,5,7,11,13,17,19,26,27,29,35,37,41,43-tetradecahydroxy-2,10,12,18,20,22,24,32,40,42,44-undecamethyl-23-oxopentatetraconta-2,20,24-trien-1-ylidene]-1-methyl-5-(2-methylpropylidene)pyrrolidine-2,4-dione

C71H126N2O21 (1342.8852626)


   

(2s,4s,6z)-1-[(5z)-2,4-dihydroxy-5-[(4-hydroxyphenyl)methylidene]pyrrol-3-yl]-2,4-dimethyloct-6-en-1-one

(2s,4s,6z)-1-[(5z)-2,4-dihydroxy-5-[(4-hydroxyphenyl)methylidene]pyrrol-3-yl]-2,4-dimethyloct-6-en-1-one

C21H25NO4 (355.178349)


   

4-hydroxy-5-(hydroxymethyl)-3-(14-methylpentadecanoyl)-5h-furan-2-one

4-hydroxy-5-(hydroxymethyl)-3-(14-methylpentadecanoyl)-5h-furan-2-one

C21H36O5 (368.2562606)


   

(2r,3s)-3-hydroxy-3-methyl-2-[(2e,4s)-4-methylhex-2-en-2-yl]-1-(2-phenylethyl)-5-propanoyl-2h-pyridin-4-one

(2r,3s)-3-hydroxy-3-methyl-2-[(2e,4s)-4-methylhex-2-en-2-yl]-1-(2-phenylethyl)-5-propanoyl-2h-pyridin-4-one

C24H33NO3 (383.2460308000001)


   

(2s,4e)-5-hydroxy-4-(1-hydroxydecylidene)-2-(2-hydroxyethyl)-2h-pyrrol-3-one

(2s,4e)-5-hydroxy-4-(1-hydroxydecylidene)-2-(2-hydroxyethyl)-2h-pyrrol-3-one

C16H27NO4 (297.1939982)


   

(2s,4e)-5-hydroxy-2-[(s)-hydroxy(4-hydroxyphenyl)methyl]-4-[(2s,4s,6z)-1-hydroxy-2,4-dimethyloct-6-en-1-ylidene]-2h-pyrrol-3-one

(2s,4e)-5-hydroxy-2-[(s)-hydroxy(4-hydroxyphenyl)methyl]-4-[(2s,4s,6z)-1-hydroxy-2,4-dimethyloct-6-en-1-ylidene]-2h-pyrrol-3-one

C21H27NO5 (373.18891320000006)


   

4-[(2r,3s)-3-hydroxy-3-methyl-2-[(2e,4s)-4-methylhex-2-en-2-yl]-4-oxo-5-propanoyl-2h-pyridin-1-yl]butanimidic acid

4-[(2r,3s)-3-hydroxy-3-methyl-2-[(2e,4s)-4-methylhex-2-en-2-yl]-4-oxo-5-propanoyl-2h-pyridin-1-yl]butanimidic acid

C20H32N2O4 (364.2361952)


   

(3z,5z)-5-ethylidene-3-[(2r)-1-hydroxy-2-methyloctylidene]-1-methylpyrrolidine-2,4-dione

(3z,5z)-5-ethylidene-3-[(2r)-1-hydroxy-2-methyloctylidene]-1-methylpyrrolidine-2,4-dione

C16H25NO3 (279.18343400000003)


   

1-ethyl-3-hydroxy-3-methyl-2-(4-methylhex-2-en-2-yl)-5-propanoyl-2h-pyridin-4-one

1-ethyl-3-hydroxy-3-methyl-2-(4-methylhex-2-en-2-yl)-5-propanoyl-2h-pyridin-4-one

C18H29NO3 (307.2147324)


   

21-hydroxy-1-{4-hydroxy-5-[(4-hydroxyphenyl)methyl]-2-oxopyrrol-3-yl}-2-methyl-22-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}docosane-1,11-dione

21-hydroxy-1-{4-hydroxy-5-[(4-hydroxyphenyl)methyl]-2-oxopyrrol-3-yl}-2-methyl-22-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}docosane-1,11-dione

C40H61NO12 (747.4193546)


   

5-hydroxy-4-(1-hydroxy-2,4-dimethyloct-6-en-1-ylidene)-2-[(4-hydroxyphenyl)methyl]-2h-pyrrol-3-one

5-hydroxy-4-(1-hydroxy-2,4-dimethyloct-6-en-1-ylidene)-2-[(4-hydroxyphenyl)methyl]-2h-pyrrol-3-one

C21H27NO4 (357.19399820000007)


   

(5e)-5-ethylidene-4-hydroxy-1-methyl-3-(2-methyloctanoyl)pyrrol-2-one

(5e)-5-ethylidene-4-hydroxy-1-methyl-3-(2-methyloctanoyl)pyrrol-2-one

C16H25NO3 (279.18343400000003)


   

(2s,4s,6e)-1-[(5z)-2,4-dihydroxy-5-[(4-hydroxyphenyl)methylidene]pyrrol-3-yl]-2,4-dimethyloct-6-en-1-one

(2s,4s,6e)-1-[(5z)-2,4-dihydroxy-5-[(4-hydroxyphenyl)methylidene]pyrrol-3-yl]-2,4-dimethyloct-6-en-1-one

C21H25NO4 (355.178349)


   

[(2r,3s,4s,5s,6r)-3,4,5-trihydroxy-6-{[(15r)-16-[(5r)-2-hydroxy-1,5-dimethyl-4-oxo-5h-pyrrol-3-yl]-15-methyl-16-oxohexadecyl]oxy}oxan-2-yl]methyl acetate

[(2r,3s,4s,5s,6r)-3,4,5-trihydroxy-6-{[(15r)-16-[(5r)-2-hydroxy-1,5-dimethyl-4-oxo-5h-pyrrol-3-yl]-15-methyl-16-oxohexadecyl]oxy}oxan-2-yl]methyl acetate

C31H53NO10 (599.3669278)


   

(4e)-5-hydroxy-4-[(6e)-1-hydroxy-2,4-dimethyloct-6-en-1-ylidene]-2-[(4-hydroxyphenyl)methyl]-2h-pyrrol-3-one

(4e)-5-hydroxy-4-[(6e)-1-hydroxy-2,4-dimethyloct-6-en-1-ylidene]-2-[(4-hydroxyphenyl)methyl]-2h-pyrrol-3-one

C21H27NO4 (357.19399820000007)


   

(4e)-5-hydroxy-4-[(2s,4s)-1-hydroxy-2,4-dimethyloct-6-en-1-ylidene]-2-[(4-hydroxyphenyl)methylidene]pyrrol-3-one

(4e)-5-hydroxy-4-[(2s,4s)-1-hydroxy-2,4-dimethyloct-6-en-1-ylidene]-2-[(4-hydroxyphenyl)methylidene]pyrrol-3-one

C21H25NO4 (355.178349)


   

(5s)-3-[(2r)-1-hydroxy-2-methyloctylidene]-5-[(1s)-1-hydroxyethyl]-1-methylpyrrolidine-2,4-dione

(5s)-3-[(2r)-1-hydroxy-2-methyloctylidene]-5-[(1s)-1-hydroxyethyl]-1-methylpyrrolidine-2,4-dione

C16H27NO4 (297.1939982)


   

(2s,3s,4r,5r,6r)-6-{[(9r)-22-[(3e,5r)-5-(carboxymethyl)-1-methyl-2,4-dioxopyrrolidin-3-ylidene]-22-hydroxy-9-methyldocosyl]oxy}-4,5-dihydroxy-3-{[(2s,3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxane-2-carboxylic acid

(2s,3s,4r,5r,6r)-6-{[(9r)-22-[(3e,5r)-5-(carboxymethyl)-1-methyl-2,4-dioxopyrrolidin-3-ylidene]-22-hydroxy-9-methyldocosyl]oxy}-4,5-dihydroxy-3-{[(2s,3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxane-2-carboxylic acid

C42H71NO17 (861.4721755999999)