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Mahonia swaseyi

Mahonia swaseyi Fedde (Berberidaceae)(See Berberis swaseyi Buckey... [Pg.7]

Mahonia siamensis Takeda (Berberidaceae) Mahonia sikkimensis Takeda (Berberidaceae) Mahonia simonsii Takeda (Berberidaceae) Mahonia swaseyi Fedde (Berberidaceae) Menispermum canadense L. (Menispermaceae)... [Pg.96]

Berbamine occurs in B. vulgaris, B. aquifolium (12, 13), B. thunbergii (22), Stephania cepharantha Hayata (23), and in B. swaseyi Buckley Mahonia swaseyi Fedde) to the extent of about 2 % in the dried roots (24). Santos (21) found that berbamine was isomeric with oxyacanthine and that oxidation of berbamine methyl ether produced 4, 5-dicarboxy-2-methoxy-diphenyl ether (VIII, R = CH3), as in the case of oxyacanthine. The constitution of the isoquinoline portion of the molecule was determined by von Bruchhausen, Oberembt, and Feldhaus (18). The products obtained after a Hofmann degradation of 0-methylberbamine followed by ozonization were the same two dialdehydes, XXXV and 4, 5-diformyl-2-methoxydiphenyl ether (XXXIV), as were obtained from 0-methyloxy-acanthine by similar treatment. On the basis of these facts von Bruchhausen and coworkers concluded that berbamine and oxyacanthine are structural isomers. If o.xyacanthine is assigned the formula XXVI then berbamine must have the formula XXXI or vice versa. [Pg.215]

See other pages where Mahonia swaseyi is mentioned: [Pg.345]   
See also in sourсe #XX -- [ Pg.4 , Pg.85 , Pg.215 ]

See also in sourсe #XX -- [ Pg.85 , Pg.215 ]



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