Pseudodistomin C, a new piperidine alkaloid with unusual absolute configuration from the Okinawan tunicate Pseudodistoma kanoko
作者:Jun'ichi Kobayashi、Kazushi Naitoh、Yukiko Doi、Kanako Deki、Masami Ishibashi
DOI:10.1021/jo00126a053
日期:1995.10
Pseudodistomin C, a new cytotoxic piperidine alkaloid, was isolated from the Okinawan tunicate Pseudodistoma kanoko and the structure elucidated by spectral data, chemical degradations, and synthesis. The absolute configurations of the C-4 and C-5 chiral centers of pseudodistomin C were revealed by chiral HPLC analysis to be 4S and 5R, which were opposite to those of pseudodistomins A and B, previously isolated from the same tunicate, having the same planar structure as to the piperidine nucleus.