De Novo Synthesis of 4‘-Ethoxy Nucleoside Analogues
作者:Louis S. Hegedus、Lisa Geisler、Andrew G. Riches、Sarri S. Salman、Gisela Umbricht
DOI:10.1021/jo020151f
日期:2002.11.1
Butenolides 5a and 13 were used as opticallyactive templates in the de novo synthesis of 4'-disubstituted nucleoside analogues. The butenolides were reduced and acylated in situ to give acetates 10 and 14. Vorbrüggen coupling gave the protected nucleoside analogues 11 and 15. Reduction of 11 gave 4'-ethoxy-2',3'-dideoxythymidine (6) and deprotection of 15 gave 4'-ethoxy-2',3'-dideoxydidehydrothymidine