T. Terauchi et M. Nakata, SYNTHETIC STUDIES ON ALTOHYRTINS (SPONGISTATINS) - SYNTHESIS OF THE C1-C-14 (AB) SPIROACETAL PORTION, Tetrahedron letters, 39(22), 1998, pp. 3795-3798
The C1-C14 portion of altohyrtins (spongistatins) was prepared in a co
nvergent manner from 3,4,6-tri-O-acetyl-D-glucal via a chelation-contr
olled methylation of ketone, dithiane couplings with epoxides, and a t
hermodynamically-controlled spiroacetalization. (C) 1998 Elsevier Scie
nce Ltd. All rights reserved.