1-(2-Chloroethyl)-4,4-difluoropiperidine hydrochloride → 6-[2-(4,4-Difluoro-piperidin-1-yl)-ethoxy]-2-pyrrolo[1,2-a]pyrazin-3-yl-chromen-4-one oxime, hydrochloride

Participants

Reaction Steps

6-[2-(4,4-Difluoro-piperidin-1-yl)-ethoxy]-2-pyrrolo[1,2-a]pyrazin-3-yl-chromen-4-one oxime, hydrochloride was prepared in 50% overall yield using the method described in example 123, starting from 6-Hydroxy-2-pyrrolo[1,2-a]pyrazin-3-yl-chromen-4-one O-tert-butyl-oxime (example 123B) and 1-(2-Chloro-ethyl)-4,4-difluoro-piperidine hydrochloride.

Provenance & Evidence