Unprotected methyl D-glycosides were selectively acylated by using thiazolidine-2-thione and 2-mercapto-5-methyl-1,3,4-thiadiazole alkoxycarbonyl or carbonyl derivatives. Under suitable conditions the corresponding 6-O-alkoxycarbonyl compounds or the cyclic Five or six membered carbonates could be obtained.
通过使用
噻唑烷-2-
硫酮和
2-巯基-5-甲基-1,3,4-噻二唑烷氧基羰基或羰基衍
生物将未保护的甲基D-糖苷选择性地酰化。在合适的条件下,可获得相应的6-O-烷氧基羰基化合物或环状的五元或六元
碳酸酯。