Study on fungitoxic 3-amino-2-piperidinone-containing lipids: Revised structure of cepaciamide A and structural determination of its closely related lipid, cepaciamide B
摘要:
The structure of cepaciamide A was revised to be (3R,3'S,2"S,11"S,12"R)-3-[3'-(2"-hydroxy-11", 12"-methyleneoctadecanoyloxy)hexadecamido]-2-piperidinone with respect to the absolute configuration of the C-3'- and C-2"-positions and the position of the cyclopropane ring by using synthetic methods. The structure of cepaciamide B was also determined to be (3R,3'S,2"S,11"Z)-3-[3'-(2"-hydroxy-11"-octadecenoyloxy)hexadecamido]-2-piperidinone. (C) 1999 Elsevier Science Ltd. All rights reserved.
A novelfungitoxiccompound, cepaciamide A, was isolated fromPseudomonascepaciaD-202. Its structure and stereochemistry were elucidated by the spectroscopic and synthetic methods.