The present invention relates to a process for the manufacture of N-(2-((2R,12bS)-2′-oxo-1,3,4,6,7,12b-hexahydrospiro[benzofuro[2,3-a]quinolizine-2,4′-imida-zolidine]-3′-yl)ethyl)-methanesulfonamide, where in the process trimethylsilyl cyanide is used.
本发明涉及一种制备N-(2-((2R,12bS)-2′-氧代-1,3,4,6,7,12b-六氢螺[
苯并呋喃[2,3-a]
喹啉-2,4′-
咪唑啉]-3′-基)乙基)-
甲烷磺酰胺的方法,其中使用三甲基
硅氰。