New marine prostanoids, preclavulone lactones, from the Okinawan soft coral Clavularia viridis
作者:Makoto Iwashima、Kinzo Watanabe、Kazuo Iguchi
DOI:10.1016/s0040-4039(97)10211-8
日期:1997.12
Two new marine prostanoids, preclavulone lactones I (1) and II (2) were isolated from the Okinawan soft coral, Clavularia viridis. Their structures were determined based on spectroscopic analysis and chemical synthesis from (S)-malic acid. Preclavulone Lactones with side chains having absolute configurations opposite to those of mammalian prostanoids could be recognized as key intermediates in biosynthesis of clavulones. (C) 1997 Elsevier Science Ltd.