Phytochemistry p. 3523 - 3528 (1988)
Update date:2022-08-28
Topics:
Koul, S. K.
Taneja, S. C.
Agarwal, V. K.
Dhar, K. L.
Three new pyrrolidides, brachyamide A, brachyamide B and brachystine, have been isolated from Piper brachystachyum.The known amides, pipercide, retrofractamide A, and guineensine, the lignans pluviatilol, methyl pluviatilol (fargesin), sesamine, asarinine and the aromatic hydrocarbon pipataline, substituted cinnamic acids, methyl ester and sitosterol were also isolated and identified.Piper longum furnished a new long chain isobutyl amide, longamide, besides guineensine and the same lignans as isolated from P. brachystachyum.All the new piperamides were characterized by spectral studies and chemical degradation.Key Word Index-Piper Brachystachyum, P. longum; Piperaceae; pyrrolidides; brachyamide A; brachyamide B; brachystine, longamide; retrofractamide A; isobutyl amides; lignans; cinnamic acid derivatives; sitosterol.
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