Process for preparing GIP / GLP1 dual agonists

Abstract

To provide novel intermediates and processes useful for producing tirzepatide or pharmaceutically acceptable salts thereof.SOLUTION: Provided is a process for producing tirzepatide or pharmaceutically acceptable salts thereof, comprising nanofiltration of a tirzepatide intermediate product. The tirzepatide intermediate product is of SEQ ID NO:28 or a pharmaceutically acceptable salt thereof.SELECTED DRAWING: None

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