Alkaloids from Dactylicapnos torulosa

Phytochemistry
1994.0

Abstract

Four new alkaloids named isoapocavidine, torulosine, torulosinine and oxocoryrutine were isolated from whole plants of Dactylicapnos torulosa. The structures were elucidated by spectral studies including UV, MS, H-1, C-13 NMR, C-13-H-1 COSY and C-13-H-1 COLOC. Known alkaloids isolated from this plant are 8-acetonyl-dihydrosanguinarine, norsanguinarine, oxosanguinarine, (+/-)-alpha-hydrastine, (+/-)-apocavidine, (+/-)-adlumidine, (+/-)-bicuculline, (+/-)-cheilanthifoline, (+/-)-beta-hydrastine, (+/-)-demethylcorydalmine, protopine, fumaridine, 1-methoxyberberinium chloride, N-trans-feruloyltyramine, N-methylhydrasteine methyl ester, N-methylhydrasteine hydroxy lactam, N-methylhydrasteine and hunnemanine. The C-13 NMR data for some of the known compounds are given for the first time.

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