Six tetrahydroisoquinoline-monoterpene glucosides from Cephaelis ipecacuanha
1991; Elsevier BV; Volume: 30; Issue: 9 Linguagem: Inglês
10.1016/s0031-9422(00)98265-7
ISSN1873-3700
AutoresAtsuko Itoh, Takao Tanahashi, Naotaka Nagakura,
Tópico(s)Sesquiterpenes and Asteraceae Studies
ResumoFrom the crude drug 'Ipecac' (dried root of Cephaelis ipecacuanha) six novel tetrahydroisoquinoline-monoterpene glucosides, 6-O-methylipecoside, ipecosidic acid, demethylalangiside, neoipecoside, 7-O-methyl-neoipecoside and 3,4-dehydroneoipecoside were isolated along with ipecoside, alangiside, sweroside and 7-dehydrologanin. The structures of new glucosides were determined by spectroscopic and chemical means. The biogenesis of these glucosides is also discussed.
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