Abstract

From a mixture of quaternary bases contained in Berberis Thunbergii DC., berberine-type base was removed as the iodide, and two kinds of bases were further obtained from the mother liquor as picrates; orange microprisms (A), m. p. 217-220° (decomp.), and bright yellow microprisms (B), m. p. 224-225° (decomp.). It was found that the picrate (A) is jatrorrhizine picrate and picrate (B), magnoflorine picrate.

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