Echinoclathrines A–C: A new class of pyridine alkaloids from an Okinawan sponge, Echinoclathria sp.
作者:Atsushi Kitamura、Junichi Tanaka、Ikuko I. Ohtani、Tatsuo Higa
DOI:10.1016/s0040-4020(99)00022-8
日期:1999.2
Echinoclathrines A–C (3–5) have been isolated from an Okinawan sponge, Echinoclathria sp. and the structures elucidated by interpretation of spectral data. These compounds are a newclass of pyridine alkaloids possessing an 4-aryl-2-methylpyridine moiety as a common structural element. Echinoclathrines A and B exhibited weak immunosup-pressive activity in a mixed lymphocyte reaction assay.