PROCESS FOR THE PREPARATION OF STRONTIUM RANELATE

摘要

The present invention relates to an improved process for the synthesis of strontium ranelate or hydrates thereof. More particularly, the present invention relates to an effective process for the preparation of a compound of formula III, which is a useful intermediate in the synthesis of strontium ranelate. wherein R1 and R2 represents substituted or unsubstituted linear or branched C1-C6 alkyl group or C3-C12 cyclic group.