摘要:
A compound of the formula: wherein R 1 is a hydrogen atom or a methyl group, R 2 is a hydrogen atom or a lower alkyl group, each of R 3 , R 4 and R 5 is a hydrogen atom or a lower alkyl group, or R 3 and R 4 together form a methylene group, an ethylene group or a propylene group, or R 4 and R 5 form together with the adjacent nitrogen atom an aziridinyl group, an azetidinyl group, a pyrrolidinyl group, a piperidino group, a piperazinyl group or a morpholino group; or a pharmaceutically acceptable salt or ester thereof.
摘要:
A compound of the formula: wherein R 1 Is a hydrogen atom or a methyl group, each of R 2 and R 3 which may be the seme or different, is a hydrogen atom or a lower alkyl group, or R 2 and R 3 form together with the adjacent nitrogen atom a heterocyclic group selected from the group consisting of an aziridinyl group, an azetidinyl group, a pyrrolldinyl group, a piperidlno group, a piperazinyl group and a morphollno group, A Is a carbonyl group or a single bond, and n ls an integer of from 0 to 3; or a pharmacautically acceptable salt or ester thereof.
摘要:
A compound of the formula: wherein R 1 is a hydrogen atom or a methyl group, R 2 is a hydrogen atom or a lower alkyl group, each of R 3 , R 4 and R 5 is a hydrogen atom or a lower alkyl group, or R 3 and R 4 together form a methylene group, an ethylene group or a propylene group, or R 4 and R 5 form together with the adjacent nitrogen atom an aziridinyl group, an azetidinyl group, a pyrrolidinyl group, a piperidino group, a piperazinyl group or a morpholino group; or a pharmaceutically acceptable salt or ester thereof.