A biphenyl derivative represented by the following general formula (1) and a pharmaceutically acceptable salt thereof:
[In the formula (1), A represents a single bond, —CH2—, —CO—, —CS— or —SO2—; B represents a single bond or —CH2—; R1 represents a hydrogen atom, —OH, —NR11R12 (wherein R11 and R12 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms), —OCOCH3, or a halogen atom; R2 represents a hydrogen atom or R1 and R2 form a group ═O together; R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; provided that in the formula, the absolute configuration of the position a may be either R or S]. The compound of the present invention has considerably high safety and efficacy and is useful as, in particular, a vasopressin receptor antagonist.
以下是一种由下列通式(1)表示的
联苯衍
生物及其药学上可接受的盐:[在式(1)中,A代表单键,—
CH2—,—CO—,—CS—或—SO2—;B代表单键或— —;R1代表氢原子,—OH,—NR11R12(其中R11和R12各自独立地代表1至4个碳原子的烷基或氢原子),—OCOCH3或卤素原子;R2代表氢原子或R1和R2共同形成═O基团;R3代表氢原子或1至4个碳原子的烷基;但在该式中,位置a的绝对构型可以是R或S]。本发明化合物具有相当高的安全性和功效,特别是作为一种
抗利尿激素受体拮抗剂非常有用。