Preparation of Non-peptide, Highly Potent and Selective Antagonists of Arginine Vasopressin V1A Receptor by Introduction of Alkoxy Groups
作者:Yoshiaki Shimada、Nobuaki Taniguchi、Akira Matsuhisa、Takeyuki Yatsu、Atsuo Tahara、Akihiro Tanaka
DOI:10.1248/cpb.51.1075
日期:——
A series of compounds structurally related to 4′-[(4,4-difluoro-5-methylidene-2,3,4,5-tetrahydro-1H-1-benzoazepin-1-yl)carbonyl]benzanilide were synthesized and evaluated for arginine vasopressin (AVP) antagonistic activity. Compounds with alkoxy groups (especially ethoxy group) at the 2′-position of benzanilide possessed potent affinity and selectivity for the V1A receptor versus V2 receptor. Further study has shown that the introduction of 4,4-dimethylaminopiperidino and morpholino groups at carbonylmethylene exhibited more potent affinity and selectivity for V1A receptors. Consequently, we found that the (Z)-4′-(4,4-Difluoro-5-[(4-dimethylaminopiperidino)carbonylmethylene]-2,3,4,5-tetrahydro-1H-1-benzoazepin-1-yl}carbonyl)-2-ethoxybenzanilide monohydrochloride (8d) and the (Z)-4′-[(4,4-Difluoro-5-morpholinocarbamoylethylene-2,3,4,5-tetrahydro-1H-1-benzoazepin-1-yl)carbonyl]-2-ethoxybenzanilide (8q) exhibited potent and selective V1A receptor antagonist activity. The synthesis and pharmacological properties of these compounds are detailed in this paper.
一系列与4′-[(4,4-二氟-5-亚甲基-2,3,4,5-四氢-1H-1-苯并氮杂䓬-1-基)羰基]苯甲酰苯胺结构相关的化合物被合成并评估了其对抗精氨酸加压素(AVP)的活性。在苯甲酰苯胺的2′-位具有烷氧基(特别是乙氧基)的化合物对V1A受体相对于V2受体具有强的亲和力和选择性。进一步的研究表明,在羰基亚甲基上引入4,4-二甲基氨基哌啶和吗啉基团显示出对V1A受体更强的亲和力和选择性。因此,我们发现(Z)-4′-(4,4-二氟-5-[(4-二甲基氨基哌啶)羰基亚甲基]-2,3,4,5-四氢-1H-1-苯并氮杂䓬-1-基}羰基)-2-乙氧基苯甲酰苯胺单盐酸盐(8d)和(Z)-4′-[(4,4-二氟-5-吗啉氨基羰基亚乙基-2,3,4,5-四氢-1H-1-苯并氮杂䓬-1-基)羰基]-2-乙氧基苯甲酰苯胺(8q)具有强效且选择性的V1A受体拮抗活性。这些化合物的合成及其药理学特性在本论文中详细阐述。