Chemical Constituents of Ajuga parviflora
نویسندگان
چکیده
Two new antifungal withanolides, (1) and (2) have been isolated from the defatted methanolic extract of Ajuga parviflora. Their structures were established as 3/3,17/3,20-trihydroxyl-oxo-(20/?, 22/?)-witha-5,14,24-trienolide (1), 28-hydroxy-14,20-epoxy-l-oxo-(22/?)-witha2,5,24-trienolide (2) on the basis of spectroscopic data including two dimensional NMR tech niques. The pyrrolizidine alkaloids senecionine (3) and integerrimine (4) are also reported for the first time from A. parviflora.
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