A Convenient Procedure for the Synthesis of O<sup>6</sup>-Benzylguanine Derivatives by Phase Transfer Catalysis
作者:Xuan Liu、Qi-Huang Zheng、Gary D. Hutchins、Xiangshu Fei、Leonard C. Erickson、Kathy D. Miller、Bruce H. Mock、Barbara E. Glick-Wilson、Wendy L. Winkle、K. Lee Stone、Kathy A. Carlson
DOI:10.1081/scc-120016358
日期:2003.1.4
Abstract A convenientprocedure by phase transfer catalysis has been developed for the synthesis of O6-BG (1) and its derivatives hydroxymethyl-BG (2a–c), halo-BG (3a–c, 4a–c, 5a–c, 6a–c), methoxy-BG (7), and methyl-BG (8). Compounds 2b, 2c, 4b, 4c, 5b, 5c, 6a, and 6c are new compounds.
A versatile method to prepare difluorinated primary alcohols and its application to the syntheses of novel acyclic fluorinated nucleosides
作者:Bruno Tse
DOI:10.1016/j.tetlet.2013.10.037
日期:2013.12
fluorine. This Letter presents a versatile method to create molecules with the general structure R1R2CHCF2CH2OH from ketone R1(CO)R2. The key steps of this synthetic method involve the formation of a cyclic thiocarbonate and the regioselective radical opening of the thiocarbonate to yield the corresponding primaryalcohol –CF2CH2OH. Using this synthetic method, novel fluorinated analogs of ganciclovir