Isolation, Structural Elucidation, and Absolute Stereochemistry of Enigmazole A, a Cytotoxic Phosphomacrolide from the Papua New Guinea Marine Sponge <i>Cinachyrella enigmatica</i>
作者:Naoya Oku、Kentaro Takada、Richard W. Fuller、Jennifer A. Wilson、Megan L. Peach、Lewis K. Pannell、James B. McMahon、Kirk R. Gustafson
DOI:10.1021/ja1016766
日期:2010.8.4
Enigmazole A (1), a novel phosphate-containing macrolide, was isolated from a Papua New Guinea collection of the marinesponge Cinachyrella enigmatica. The structure of 1, including the absolute stereochemistry at all eight chiral centers, was determined by a combination of spectroscopic analyses and a series of microscale chemical derivatization studies. Compound 1 is comprised of an 18-membered phosphomacrolide