A convenient synthesis of racemic 2′-deoxy carbocyclic thymidines lacking the 5′-methylene group
作者:Jinglan Zhou、Philip B. Shevlin
DOI:10.1016/s0040-4039(98)01929-7
日期:1998.11
A convenient synthesis of racemic 2′-deoxy carbocyclic thymidines lacking the 5′-methylene group is reported. Thus, appropriately protected nucleic acid bases are coupled to 3-cyclopentenol, 1, via the Mitsunobu reaction. Epoxidation of the protected thymine substituted cyclopentene gives the corresponding syn and anti-epoxides in a 4:1 ratio. Ring opening of the syn-epoxide by a variety of nucleophiles