AN EFFICIENT PROCESS FOR THE PREPARATION OF ERTUGLIFLOZIN L-PYROGLUTAMIC ACID AND INTERMEDIATES THEREOF

摘要

The present invention relates to an efficient process for the preparation of Ertugliflozin L-pyroglutamic acid of formula (I) and intermediate thereof, in environment friendly conditions. The present invention further relates to a process for the preparation of substantially pure intermediate of formula (IV).