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Studies on the alkaloids of Pachysandra terminalis sieb. et ZUCC. : Structure of Pachysandrine A and B.

โœ Scribed by M. Tomita; S. Uyeo Jr.; T. Kikuchi

Publisher
Elsevier Science
Year
1964
Tongue
French
Weight
347 KB
Volume
5
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Plants of Pachysandra genus have been known to contain alkaloidal constituents (0, but no report on isolation and structure elucidation of their alkaloids has been found In the past literatures. The authors examined systematically the basic fraction of Pachysandra terminalis SIEB. et ZUCC. and succeeded to isolate a number of alkaloids in pure crystalline forms. Two alkaloids among these, for which we proposed the name pachysandrine A and B, were demonstrated to have the structure Ia and If, respectively. Pachysandrlne A, C3&CO$2, m.p. 235-6' *, [o(]? +80' ** showed, IRYmax N"jol 1730, 1245 (-0COCH3), 1620 cm -' ***(conjugated * All the melting points were uncorrected. ++ Optical rotations were measured in chloroform solutions. *** We thank Dr. K. Machlda of thls Faculty for IR measurements.

๐Ÿ“œ SIMILAR VOLUMES

Studies on the alkaloids of pachysandra
Studies on the alkaloids of pachysandra terminalis sieb. et zucc. (3). : Systematic separation and characterization of alkaloids.
โœ T. Kikuchi; S. Uyeo Jr.; M. Ando; A. Yamamoto ๐Ÿ“‚ Article ๐Ÿ“… 1964 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 267 KB

In the previous communications (1) it was reported that pachysandrine-A, pachysandrine-B, pachjsamine-A, and pachysamlne -B, new alkaloids isolated from F'achfsanora terminalis SYEB. et zucc., have the structure Ia, Ib, IIa, and IIb, respectively.