| 摘要 |
The present invention relates to compounds of formula (I):wherein:Ar is an optionally substituted aromatic or heteroaromatic group,R1 is H, C1-6alkyl, CF3, phenyl, benzyl, carboC1-6alkoxy, carbamoyl, or methyl(N-C1-6alkylcarbamoyl)R2 is H, C1-6alkyl, aminoC1-6alkyl, hydroxyC1-6alkyl, (mono- or di- C1-6alkyl)aminoC1-6alkyl, (aminoC1-3alkylphenyl)C1-3alkyl, amidinothio C1-6alkyl,R3 is H or C1-6alkoxy,R4 is H or together with R2, forms an annulated ring which may be substituted by hydroxyC1-3alkyl or amidinothio C1-3alkyl, or aminoC1-3alkyl;and pharmaceutically acceptable salts thereof;and the use of such compounds in medical therapies. |
