Synthesis and β-blocking activity of (R,S)-(E)-oximeethers of 2,3-dihydro-1,8-naphthyridine and 2,3-dihydrothiopyrano[2,3-b]pyridine:potential antihypertensive agents – Part IX
作者:P Ferrarini
DOI:10.1016/s0223-5234(00)00173-2
日期:2000.9
The synthesis of oximeethers of 2,3-dihydro-1,8-naphthyridine and 2, 3-dihydrothiopyrano[2,3-b]pyridine is described. These compounds exhibit a selective beta-blocking activity, with a selectivity towards beta(2)-receptors. Groups in the N(1) position giving rise to a considerable steric hindrance led to a higher beta(2)-blocking selectivity, whereas groups creating a moderate hindrance caused a weak
描述了2,3-二氢-1,8-萘啶和2,3-二氢硫代吡喃并[2,3-b]吡啶的肟醚的合成。这些化合物具有选择性的β受体阻断活性,对β(2)受体具有选择性。在N(1)位置的组会引起相当大的空间位阻,从而导致更高的beta(2)阻断选择性,而创建中等位点的组会导致β(2)-拮抗力弱但显着降低。N(1)-R基团被硫原子取代导致化合物具有β(1)-,β(2)-和β(3)阻断特性。化合物9c(1)和10a(1)的β(3)拮抗活性略低于普萘洛尔。