摘要:
D-ribo-Phytosphingosine 1 was conveniently synthesized from N-benzoyl-D-glucosamine 3 by an improved route in which regioselective O-methanesulfonation and diastereoselective Grignard addition are involved as key steps. Using a synthetic intermediate of 1, novel D-ribo-phytosphingosinetype glycolipids 2a and 2b, unnatural homologues of antifungal cerebrosides Halicylindrosides, were efficiently synthesized in a stereocontrolled manner. (C) 1999 Elsevier Science Ltd. All rights reserved.