title: Three new manzamine congeners from amphimedon sponge
abstract: Three new manzamine congeners (1-3) have been isolated from the Okinawan marine sponge Amphimedon sp., and the structures, including relative stereochemistries, were elucidated on the basis of spectroscopic data. Absolute configuration at C-16 of 1 was determined by modified Mosher's method.
authors.affiliation: Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
authors.initials: D
authors.lastname: Watanabe
authors.initials: M
authors.lastname: Tsuda
authors.initials: J
authors.lastname: Kobayashi