Toward a Scalable Synthesis and Process for EMA401, Part I: Late Stage Process Development, Route Scouting, and ICH M7 Assessment

We present the enantioselective synthesis of sodium (3S)-5-(benzyloxy)-2-(diphenylacetyl)-6-methoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (EMA401, olodanrigan), an angiotensin II type 2 anta...