Abstract
Objective To investigate the chemical constituents of Croton crassifolius.Methods A number of methods,such as extraction,chromatography on silica gel,and recrystallization,were utilized to isolate and purify the ethanol extract from C.crassifolius,and the structures of the compounds isolated were identified by physicochemical properties and spectral analyses.Results Ten compounds were isolated and identified as cyperenoic acid(1),β-sitosterol(2),lupeol(3),chettaphanin II(4),9-[2-(2(5H)furanone-4-yl)ethyl]-4,8,9-trimethyl-1,2,3,4,5,6,7,8-octahydro-naphthalene-4-carboxylic acid(5),acetyl aleuritolic acid(6),epitaraxerol(7),9-[2-(2(5H)-furanone-4-yl)ethyl]-4,8,9-trimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene-4-carboxylic ester(8),teucvidin(9),and stigmasterol(10).Conclusion Compounds 5 and 8 are newly-discovered compounds,named as crassifolius acid and crassifolius ester,and compounds 4,6,and 7 are isolated from this plant for the first time.
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Claims 6
Claim · model-written summary
Cyperenoic acid, β-sitosterol and lupeol were isolated and identified.
- Taxon
- Croton crassifolius
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Croton crassifoliust0 - Outcome
- cyperenoic acid(1),β-sitosterol(2),lupeol(3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Ten compounds were isolated and identified as cyperenoic acid(1),β-sitosterol(2),lupeol(3)”
t0“Croton crassifolius”
Claim · model-written summary
Chettaphanin II and acetyl aleuritolic acid were isolated and identified.
- Taxon
- Croton crassifoliusCroton crassifoliust0
- Outcome
- chettaphanin II(4)e0
- Qualifier
- acetyl aleuritolic acid(6)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chettaphanin II(4),9-[2-(2(5H)furanone-4-yl)ethyl]-4,8,9-trimethyl-1,2,3,4,5,6,7,8-octahydro-naphthalene-4-carboxylic acid(5),acetyl aleuritolic acid(6)”
t0“Croton crassifolius”
Claim · model-written summary
Epitaraxerol, teucvidin and stigmasterol were isolated and identified.
- Taxon
- Croton crassifoliusCroton crassifoliust0
- Outcome
- epitaraxerol(7)e0
- Qualifier
- teucvidin(9),and stigmasterol(10)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“epitaraxerol(7),9-[2-(2(5H)-furanone-4-yl)ethyl]-4,8,9-trimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene-4-carboxylic ester(8),teucvidin(9),and stigmasterol(10)”
t0“Croton crassifolius”
Claim · model-written summary
Compound 5 was newly discovered and named crassifolius acid.
- Taxon
- Croton crassifoliusCroton crassifoliust0
- Outcome
- crassifolius acide0
- Qualifier
- newly-discovered compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compounds 5 and 8 are newly-discovered compounds,named as crassifolius acid and crassifolius ester”
t0“Croton crassifolius”
Claim · model-written summary
Compound 8 was newly discovered and named crassifolius ester.
- Taxon
- Croton crassifoliusCroton crassifoliust0
- Outcome
- crassifolius estere0
- Qualifier
- newly-discovered compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compounds 5 and 8 are newly-discovered compounds,named as crassifolius acid and crassifolius ester”
t0“Croton crassifolius”
Claim · model-written summary
Compounds 4, 6 and 7 were isolated from this plant for the first time.
- Taxon
- Croton crassifoliusCroton crassifoliust0
- Outcome
- isolated from this plant for the first timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compounds 4,6,and 7 are isolated from this plant for the first time”
t0“Croton crassifolius”