N-苄基-3-吡咯烷醇 以 二氯甲烷,N,N-二甲基甲酰胺 用作溶剂,化学反应 15.0H,反应生成盐酸巴尼地平 参考文献:强大的钙拮抗剂1-苄基-3-吡咯烷基甲基2,6-二甲基-4-(间硝基苯基)-1,4-二氢吡啶-3,5-二羧酸酯的立体选择性. 标题:强大的钙拮抗剂1-苄基-3-吡咯烷基甲基2,6-二甲基-4-(间硝基苯基)-1,4-二氢吡啶-3,5-二羧酸酯的立体选择性. 摘要:通过(-)-或(+)-5-(甲氧基羰基)-2,6-二甲基-4-(m)的反应合成了标题化合物的四种对映体(3A-D),Ym-09730(3).-(硝基苯基)-1,4-二氢吡啶-3-羧酸(1A或1B)与(S)-或(R)-1-苄基-3-吡咯烷醇(2A或2B).评估了这些化合物的[3H]硝苯地平结合亲和力和冠脉舒张活性.通过x射线晶体学研究明确地确定了持续时间最长的最强对映体(3A)的绝对构型为(S)-1,4-二氢吡啶-C4和(S)-吡咯烷-C3(s,S)用3A X Hbr以及3A X Hcl萃取.1A的构型对应于r,并且3的其他对映体分别通过化学相关性确定.四种对映异构体的效能顺序为(s,S)-3A大于(s,R)-3B大于(r,R)-3D大于(r,S)-3C.通过比较其1,4-二氢吡啶(dhp)环的褶皱模式与在3A X Hcl或3A X Hbr中发现的褶皱模式,来确定具有相同酯基的硝苯地平衍生 Doi:10.1021/jm00162A013
专利信息
专利号:CN-105541797-A 优先权日:2014-10-29 标题:The synthesis technique of barnidipine hydrochloride
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合成参考文献
参考文献:10.1021/jm00162a013 摘要:Tamazawa K, Arima H, Kojima T, Isomura Y, Okada M, Fujita S, Furuya T, Takenaka T, Inagaki O, Terai M. Stereoselectivity of a potent calcium antagonist, 1-benzyl-3-pyrrolidinyl methyl 2,6-dimethyl-4-(m-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate. J Med Chem. 1986 Dec;29(12):2504–11. doi: 10.1021/jm00162a013.