Stereoselective Synthesis of the Proposed C79-C104 Fragment of Symbiodinolide

Stereoselective and streamlined synthesis of the proposed C79-C104 fragment 2 of symbiodinolide (1), a polyol marine natural product with a molecular weight of 2860, was achieved. In the synthetic route, the proposed C79-C104 fragment 2 was synthesized by utilizing a Julia-Kocienski olefination and subsequent Sharpless asymmetric dihydroxylation as key transformations in a convergent manner. Detailed comparison of the 13 C NMR chemical shifts between the natural product and the synthetic C79-C104 fragment 2 revealed that the stereostructure at the C91-C99 carbon chain moiety of symbiodinolide (1) should be reinvestigated.

This is an article published by Wiley-VCH

We appreciate JGC-S Scholarship Foundation, The Naito Foundation, The Sumitomo Foundation, and The Uehara Memorial Foundation for their financial supports. This research was supported by a Grant-in Aid for Scientific Research (No. 24710250) from the Japan Society for the Promotion of Science (JSPS)