Provided herein is an improved, convenient, commercially viable and environmentally friendly process for the preparation of varenicline or a pharmaceutically acceptable salt thereof comprising reacting 1-(4,5-diamino-10-aza-tricyclo[6.3.1.0
2.7
]dodeca-2(7),3,5-trien-10-yl)-2,2,2-trifluoro-ethanone with chloroacetaldehyde in the presence of an oxygen source. Provided further herein is an improved and industrially advantageous process for the preparation of 1-(4,5-diamino-10-aza-tricyclo[6.3.1.0
2.7
]dodeca-2(7),3,5-trien-10-yl)-2,2,2-trifluoro-ethanone.
本文提供了一种改进的、方便的、商业可行的和环保的制备
瓦伦尼克林或其药学上可接受的盐的方法,包括在氧源的存在下将1-(4,5-二
氨基-10-氮杂-
三环[6.3.1.02.7]
十二烷-2(7),3,5-
三烯-10-基)-2,2,2-三
氟乙酮与
氯乙醛反应。此外,本文还提供了一种改进的、在工业上具有优势的制备1-(4,5-二
氨基-10-氮杂-
三环[6.3.1.02.7]
十二烷-2(7),3,5-
三烯-10-基)-2,2,2-三
氟乙酮的方法。