| Literature DB >> 21922903 |
Rehan Khan1, Farah Siddiq, Itrat Fatima, Shazia Yasmeen, Aman Karim, Abdul Malik, Nighat Afza, Saira Hameed.
Abstract
A new pregnane derivative, 2,6beta,7beta-trihydroxy-4-methyl-19-norpregna-1,3,5(10)-trien-17-one, has been isolated from the ethyl acetate soluble fraction of Potentilla evestita along with a pregnane derivative, 11alpha,17alpha,21-trihydroxypregna-4,16(22)-diene-3,20-dione, that is reported for the first time as a natural product. Their structures were elucidated with the aid of 1H and 13C NMR spectra and by COSY, HMQC, HMBC and NOESY experiments.Entities:
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Year: 2011 PMID： 21922903
Source DB: PubMed Journal: Nat Prod Commun ISSN： 1555-9475 Impact factor: 0.986