Patent ID: 6025495
Filing Date: 2000-02-15
Classification: C07D

Abstract:
A process for preparing a compound of formula VI ##STR6## wherein: R.sup.1 and R.sup.2 each are independently C.sub.1 -C.sub.4 alkyl, or combine to form, together with the nitrogen atom to which they are attached, a piperidinyl, pyrrolidinyl, methylpyrrolidinyl, dimethylpyrrolidinyl, morpholino, or 1-hexamethyleneimino ring; andn is 2 or 3;or a pharmaceutically acceptable salt or solvate thereof, which comprises:reacting a compound of formula IV ##STR7## with a compound of formula V ##STR8## wherein Y is chloro or 4-methylphenylsulfonyl-O-, and n, R.sup.1, and R.sup.2 are as defined above;in the presence of a suitable base.