Patent ID: 6908999

Claim:
A process for the preparation of a compound of the Formula (II) wherein R 1 and R 2 are each independently a C 1 to C 4 alkyl group optionally substituted by a phenyl group, a C 2 to C 4 alkenyl group, or a cyclohexyl group, or R 1 and R 2 form together with the adjacent nitrogen atom, a morpholino group, or a pharmaceutically acceptable acid addition salt thereof, which comprises the step of reacting an alkali metal salt of a compound of the Formula (III) with a compound of the Formula (IV) wherein R 1 and R 2 are as defined above and is a halo atom, and where the pharmaceutically acceptable acid addition salt of the Formula (II) is to be obtained, converting the compound of the Formula (II) to the pharmaceutically acceptable acid addition salt with an inorganic or organic acid.