Preparation of intermediates for the synthesis of Canagliflozin and Dapagliflozin

摘要

ufeffpu0159edlou017eenu00e9 solution relates to the method of preparation intermediu00e1tu016f structures 1a and 1b for the synthesis of canagliflozinu,, for the synthesis of dapaglliflozinu, where in the structure of 1a x is methyl, and ar represents a 2 - (5 - (4-fluorophenyl) (2-thienyl) and in the structure of 1b, x is chlorine and ar represents 4-ethoxyphenyl.