The chemistry of amphotericin B. Synthesis of 13,14-anhydro derivatives
Abstract
Pertrimethylsilylation of N-acetylamphotericin B methyl ester (2) using trimethylsilyl trifluoromethanesulphonate results in anomeric elimination to give the 13,14-anhydro derivative (5) rather than the reported 13-O-trimethylsilyl ether (3).