The present invention relates to an improved process for the preparation of 2-n-butyl-3-[[2′-(1H-tetrazol-5-yl)[1,1′-biphenyl]-4-yl]-1,3-diazaspiro[4.4]non-1-en-4-one (Irbesartan).
本发明涉及一种改进的制备2-正丁基-3-[[2'-(
1H-四唑-5-基)[1,1'-
联苯]-4-基]-1,3-二氮杂螺[4.4]
壬-1-烯-4-酮(
厄贝沙坦)的方法。