Patent ID: 9493448
Filing Date: 2016-11-15
CPC Classification: A61P,C07B,C07D,Y02P

Claim Text:
1. A method of producing a compound represented by formula (I): or a pharmacologically acceptable salt thereof, wherein Ar R R n is an integer of 1 to 3; wherein the heteroaryl group is optionally substituted with one or two groups independently selected from a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group, a carboxy group, a cyano group, an amino group, a C1-C3 alkylamino group and a di-C1-C3 alkylamino group; and when the heteroaryl group is substituted with two such groups, the two groups are the same as or different from each other, comprising a step of removing a protecting group, P, from the compound of formula (VI)