Six tetrahydroisoquinoline-monoterpene glucosides from Cephaelis ipecacuanha
作者： Atsuko Itoh , Takao Tanahashi , Naotaka Nagakura
DOI: 10.1016/S0031-9422(00)98265-7
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摘要: Abstract From 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 7-dehydrologanin. The structures new glucosides determined by spectroscopic chemical means. biogenesis these is also discussed.
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