Stereoselective Synthesis of <scp>d</scp>-Desosamine and Related Glycals via Tungsten-Catalyzed Alkynol Cycloisomerization
作者:Mary H. Davidson、Frank E. McDonald
DOI:10.1021/ol049630m
日期:2004.5.1
Stereoselective synthesis of d-desosamine diacetateester (iii, R = Ac) was achieved from the glycal (ii). generated by tungsten carbonyl-catalyzed cycloisomerization of the corresponding amino-alkynol (i). A wide variety of N-substituents (R, R') are compatible with the cycloisomerization, provided that at least one R or R' is an acyl derivative.