C20H28O4

Name:3α-Hydroxy-4β-hydroxymethyl-4,8-dimethyl-18-nor-16-oxa-5α-androsta-13(17),14-dien-2-one
Cas:71302-28-8
Formula:C20H28O4
Synonyms:(3bR,5aR,6S,7S,9aR,9bR)-7-hydroxy-6-hydroxymethyl-3b,6,9a-trimethyl-3b,5,5a,6,7,9,9a,9b,10,11-decahydrophenanthro-[1,2-c]furan-8(4H)-one;3α,19-Dihydroxyspongia-13(16),14-dien-2-on;(3bR,5aR,6S,7S,9aR,9bR)-7-Hydroxy-6-hydroxymethyl-3b,6,9a-trimethyl-3b,5,5a,6,7,9,9a,9b,10,11-decahydro-4H-phenanthro[1,2-c]furan-8-one;

Name:Nivenolide
Cas:67890-42-0
Formula:C20H28O4
Synonyms:(1S,4aS,5R,8aS)-1,4a-Dimethyl-6-methylene-5-[2-(2-oxo-2,5-dihydro-furan-3-yl)-ethyl]-decahydro-naphthalene-1-carboxylic acid;

Name:Marrubiagenine
Cas:52482-96-9
Formula:C20H28O4
Synonyms:marrubiagenin;cis-ent-Cleroda-3,13-dien-15,18-dioic acid-15,16-olide;(4aR,5S,6R,8aS)-5,6,8a-Trimethyl-5-[2-(5-oxo-2,5-dihydro-furan-3-yl)-ethyl]-3,4,4a,5,6,7,8,8a-octahydro-naphthalene-1-carboxylic acid;cis-cleroda-3,13(14)-dien-15,16-olide-18-oic acid;

Name:4,4a,5,6,9,10,11,11a-Octahydro-9-hydroxy-4-(4-hydroxy-4-methyl-2-pentenylidene)-7-methyl-11-methylenecyclonona[c]pyran-3(1H)-one
Cas:71117-53-8
Formula:C20H28O4
Synonyms:(E)-(4aS,9R,11aR)-9-Hydroxy-4-[(E)-4-hydroxy-4-methyl-pent-2-en-(Z)-ylidene]-7-methyl-11-methylene-4,4a,5,6,9,10,11,11a-octahydro-1H-cyclonona[c]pyran-3-one;

Name:2(5H)-Furanone,4-[2-(3,5,6,6a,7,8,9,10-octahydro-1-hydroxy-7,8-dimethyl-1H-naphtho[1,8a-c]furan-7-yl)ethyl]-,(1S,6aS,7R,8S,10aS)- (9CI)
Cas:132296-00-5
Formula:C20H28O4
Synonyms:2(5H)-Furanone,4-[2-(3,5,6,6a,7,8,9,10-octahydro-1-hydroxy-7,8-dimethyl-1H-naphtho[1,8a-c]furan-7-yl)ethyl]-,[1S-(1a,6ab,7b,8a,10aR*)]-;1H-Naphtho[1,8a-c]furan, 2(5H)-furanone deriv.; Amphiacrolide C

Name:4a(2H)-Naphthalenecarboxylicacid,1-[2-(2,5-dihydro-5-oxo-3-furanyl)ethyl]-1,3,4,7,8,8a-hexahydro-1,2,5-trimethyl-,(1S,2R,4aS,8aR)-
Cas:131740-63-1
Formula:C20H28O4
Synonyms:4a(2H)-Naphthalenecarboxylicacid,1-[2-(2,5-dihydro-5-oxo-3-furanyl)ethyl]-1,3,4,7,8,8a-hexahydro-1,2,5-trimethyl-,[1S-(1a,2b,4ab,8aa)]-; Strigillanoic acid;Strigillanoic acid A

Name:(E)-(5R,7R)-8-BENZYLOXY-7-HYDROXY-5-METHYL-5-VINYL-OCT-2-ENOIC ACID ETHYL ESTER
Cas:130675-12-6
Formula:C20H28O4
Synonyms:(E)-(5R,7R)-8-BENZYLOXY-7-HYDROXY-5-METHYL-5-VINYL-OCT-2-ENOIC ACID ETHYL ESTER

Name:Furo[4,3,2-ij][2]benzopyran-2,7-dione,2a,3,4,6,8a,8b-hexahydro-6-methyl-5-[(1S)-1,3,3-trimethylcyclohexyl]-,(2aR,6R,8aS,8bR)-
Cas:130246-91-2
Formula:C20H28O4
Synonyms:Furo[4,3,2-ij][2]benzopyran-2,7-dione,2a,3,4,6,8a,8b-hexahydro-6-methyl-5-(1,3,3-trimethylcyclohexyl)-, [2aR-[2aa,5(S*),6a,8aa,8ba]]-; Cadlinolide A

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