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Communication | Special issue | Vol 67, No. 1, 2006, pp.107-112
Published online, 30th August, 2005
DOI: 10.3987/COM-05-S(T)30
■ Synthetic Study of α(2,8) Oligosialoside Using N-Troc Sialyl N-Phenyltrifluoroimidate

Hiroshi Tanaka, Yuji Nishiura, Masaatsu Adachi, and Takashi Takahashi*

*Department of Applied Chemistry, Graduate School of Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan

Abstract

An effective approach for the synthesis of oligo-α(2,8) sialosides using N-Troc sialyl donors is described. Glycosylation of N-Troc sialoside with N-Troc sialyl N-phenyltrifluoroimidate and phosphites smoothly proceeded to provide α(2,8) disialosides in good yield and selectivity.