An economical process, amenable to large-scale production, is disclosed for the preparation of 2',3'-didehydro-3'-deoxythymidine (d4T) from 5-methyluridine. The process employs a novel, 5'-,acyl-2'.alpha.-halo-3'.alpha.-alkanesulfonylthymidine intermediate as well as a highly efficient and practical deprotection, isolation and purification procedure for the d4T product.
本发明揭示了一种适用于大规模生产的经济过程,用于从5-甲基尿
嘧啶制备2',3'-二脱氢-3'-脱氧胸腺
嘧啶(d4T)。该过程采用一种新型的5'-酰基-2'.alpha.-卤代-3'.alpha.-烷基磺酰基胸腺
嘧啶中间体,以及一种高效实用的去保护、分离和纯化d4T产物的程序。