Studies on the Constituents of Broussonetia Species. IV. Two New Pyrrolidinyl Piperidine Alkaloids, Broussonetines I and J, from Broussonetia kazinoki SIEB.

Chemical and Pharmaceutical Bulletin
1998.0

Abstract

Two new pyrrolidinyl piperidine alkaloids called broussonetines I and J were isolated from the branches of Broussonetia kazinoki SIEB. (Moraceae). Broussonetines I and J were formulated as (2R)-2-{(1S,2S)-1,2-dihydroxy-8- [(2R,3R,4R,5R)-5-(2-hydroxymethyl-3,4-dihydroxypyrrolidinyl)octyl}-1- acetylpiperidine (1) and (2R)-2-{(1S,2S)-1, 2-dihydroxy-8-[(2R,3R,4R,5R)-5- (2-hydroxymethyl-3-4-dihydroxy-1-acetylpyrrolidinyl)]octyl}-1-acetyl- piperidine (2), respectively, by spectroscopic and chemical methods.

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