{"title":"New Triterpenoids from the Leaves of Abrus Precatorius","authors":"Nam-Cheol Kim, Darrick S. H. L. Kim, A. Kinghorn","doi":"10.1080/10575630290020596","DOIUrl":null,"url":null,"abstract":"Three new ( 1-3 ) triterpenoids and one known ( 4 ) triterpenoid were isolated from an acid hydrolyzed methanol-soluble extract of the leaves of Abrus precatorius . Their structures were identified as (20 S ,22 S )-3 g ,22-dihydroxycucurbita-5(10),24-diene-26,29-dioic acid i -lactone ( 1 ), 3- O -[6'-methyl- g - d -glucuronopyranosyl]-3 g ,22 g -dihydroxyolean-12-en-29-oic acid methyl ester ( 2 ), 3- O - g - d -glucuronopyranosylsophoradiol methyl ester ( 3 ), and sophoradiol ( 4 ) by spectroscopic techniques including 2D NMR.","PeriodicalId":18873,"journal":{"name":"Natural Product Letters","volume":"3 1","pages":"261 - 266"},"PeriodicalIF":0.0000,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Natural Product Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10575630290020596","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 22
Abstract
Three new ( 1-3 ) triterpenoids and one known ( 4 ) triterpenoid were isolated from an acid hydrolyzed methanol-soluble extract of the leaves of Abrus precatorius . Their structures were identified as (20 S ,22 S )-3 g ,22-dihydroxycucurbita-5(10),24-diene-26,29-dioic acid i -lactone ( 1 ), 3- O -[6'-methyl- g - d -glucuronopyranosyl]-3 g ,22 g -dihydroxyolean-12-en-29-oic acid methyl ester ( 2 ), 3- O - g - d -glucuronopyranosylsophoradiol methyl ester ( 3 ), and sophoradiol ( 4 ) by spectroscopic techniques including 2D NMR.
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