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Original Articles

Two new triterpenoids from the resin of Boswellia carterii

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Pages 193-197 | Received 05 Nov 2010, Accepted 14 Dec 2010, Published online: 15 Mar 2011
 

Abstract

Two new triterpenoids, 3-oxotirucalla-7,9(11),24-trien-21-oic acid (1) and 18Hα,3β,20β-ursanediol (2), along with 15 known triterpenes, α-amyrin, α-boswellic acid, β-boswellic acid, acetyl α-boswellic acid, acetyl β-boswellic acid, 9,11-dehydro-β-boswellic acid, 9,11-dehydro-α-boswellic acid, acetyl 11α-methoxy-β-boswellic acid, 11-keto-β-boswellic acid, acetyl 11-keto-β-boswellic acid, acetyl α-elemolic acid, 3β-hydroxytirucalla-8,24-dien-21-oic acid, elemonic acid, 3α-hydroxytirucalla-7,24-dien-21-oic acid, and 3α-hydroxytirucall-24-en-21-oic acid, were isolated from the resin of Boswellia carterii Birdw.

Acknowledgements

The authors wish to thank Mrs Wen Li and Mr Yi Sha (Shenyang Pharmaceutical University, Shenyang 110016, China) for the NMR experiment.

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