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Hypecoum procumbens

Three of the alkaloids (55-57) were isolated from Corydalis incisa (63-65) and two (57, 58) from Hypecoum procumbens (66), where they coexist with the parent protoberberines. They are formed in plants by an oxidative C-6—N bond cleavage, possibly through an aldehyde intermediate 61. This assumption was supported by in vivo experiments in which ( )-tetrahydrocorysamine-8,/4-/2 (59) and (+ )-tetrahydrocoptisine-8,74-/2 (60) were fed to Corydalis incisa (67) to produce corydalic acid methyl ester-8-/ (55) along with corydamine-8-f (58) and corydalic acid methyl ester-8-/ (55) with corynoline-8-/ (62), a benzophenantridine alkaloid, respectively (Scheme 14). [Pg.251]

See other pages where Hypecoum procumbens is mentioned: [Pg.173]    [Pg.234]    [Pg.234]    [Pg.148]    [Pg.307]    [Pg.158]    [Pg.511]    [Pg.173]    [Pg.234]    [Pg.234]    [Pg.148]    [Pg.307]    [Pg.158]    [Pg.511]   
See also in sourсe #XX -- [ Pg.307 , Pg.331 ]

See also in sourсe #XX -- [ Pg.337 ]

See also in sourсe #XX -- [ Pg.4 , Pg.158 ]

See also in sourсe #XX -- [ Pg.15 , Pg.16 , Pg.17 ]

See also in sourсe #XX -- [ Pg.470 ]



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