Process for preparing anhydrous CETP quinoline type inhibitor by crystallization

摘要

This invention relates to methods for preparing anhydrous CETP inhibitor, (2R,4S)-4-[(3,5-bis-trifluoromethyl-benzyl)-methoxycarbonyl-amino]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester.