Long-acting dihydropyridine calcium antagonists. 6. Structure-activity relationships around 4-(2,3-dichlorophenyl)-3-(ethoxycarbonyl)-2-[(2-hydroxyethoxy)methyl]-5-(methoxycarbonyl)-6-methyl-1,4-dihydropyridine
作者:David Alker、Simon F. Campbell、Peter E. Cross
DOI:10.1021/jm00105a004
日期:1991.1
4-dihydropyridine (2) is described, and its potent calcium antagonist activity on rat aorta (IC50 = 4 x 10(-9) M) and marked tissue selectivity in vitro for vascular smooth muscle over cardiac smooth muscle are established. In order to exploit the excellent in vitro profile of compound 2, a range of analogues were prepared but none were found to have superior calcium antagonist potency and tissue selectivity. Compound
描述了4-(2,3-二氯苯基)-3-(乙氧基羰基)-2-[(2-羟基乙氧基)甲基] -5-(甲氧基羰基)-6-甲基-1,4-二氢吡啶的制备(2) ,并建立了其对大鼠主动脉的强钙拮抗剂活性(IC50 = 4 x 10(-9)M)和体外对血管平滑肌优于心脏平滑肌的明显组织选择性。为了利用化合物2的出色的体外特性,制备了一系列类似物,但没有一个具有出色的钙拮抗剂效价和组织选择性。化合物2在麻醉的狗中具有出色的体内活性(ED50 = 12微克/ kg,可降低CVR),在清醒的狗中血浆半衰期为7.2小时。将2的药代动力学参数与对结构相关化合物氨氯地平和非洛地平测定的参数进行比较。