Medicinal compounds from β-phenylisopropylamine derivatives. VIII. Dependence of pharmacological activity upon structure in a series of β-phenylisopropylamine derivatives
作者:N. I. Kudryashova、N. A. Novikova
DOI:10.1007/bf00760702
日期:1984.4
described earlier: ll-Vl [i], Vll-Xl [2], XII [3], XIV and XV [4]. The dihydrochloride of compound XIII was described in [5]. It was prepared by reduction of the 8-phenylisopropylamide of 4,4'-dinitrodiphenylacetic acid with iron in acetic acid. However, the authors did not isolate the base, and indicated that it was unstable and rapidly darkened in air. In the present work, we studied hydrazine hydrate
一些化合物的合成在前面已经描述过:II-VI[i]、VII-XI[2]、XII[3]、XIV和XV[4]。[5]中描述了化合物XIII的二盐酸盐。它是通过用铁在乙酸中还原 4,4'-二硝基二苯乙酸的 8-苯基异丙基酰胺而制备的。然而,作者没有分离出该基地,并指出它不稳定,在空气中迅速变暗。在目前的工作中,我们研究了在雷尼镍存在下作为还原剂的水合肼。该程序以非常好的收率得到4.4'-二氨基二苯乙酸的8-苯基异丙基酰胺。它是完全稳定的,长期储存不会发生变化。化合物XVI和XVII分别通过4-氨基苯乙酸II和苯乙酸的8-苯基异丙基酰胺的氢化铝锂还原得到。