Synthesis and spasmolytic activity of 2-substituted-3-(.OMEGA.-dialkylaminoalkoxyphenyl)acrylonitriles and related compounds.
作者:SHUNSUKE NARUTO、HIROYUKI MIZUTA、TOYOKICHI YOSHIDA、HITOSHI UNO、KATSUYOSHI KAWASHIMA、TOSHIAKI KADOKAWA、HARUKI NISHIMURA
DOI:10.1248/cpb.31.2023
日期:——
Several analogs of (Z)-2-(1, 2-benzisoxazol-3-yl)-3-[2-(2-piperidinoethoxy) phenyl]-acrylonitrile (1a), such as (Z)-2-(1, 2-benzisothiazol-3-yl)-, (Z)-2-(1H-indol-3-yl)-, (E)-2-(2-thienyl)-and (E)-2-benzoyl-3-(ω-dialkylaminoalkoxyphenyl) acrylonitriles (2-5), were synthesized by means of the Knoevenagel condensation. The descyano analog (6) was prepared by means of the Wittig reaction. Triethylammonium formate reduction of 1 afforded the dihydro analog (7). The spasmolytic activities of these analogs were examined. Among these compounds, (Z)-2-(1, 2-benzisothiazol-3-yl)-3-[2-(2-piperidinoethoxy) phenyl]-acrylonitrile (2a) and (Z)-2-(1, 2-benzisothiazol-3-yl)-3-[2-(2-morpholinoethoxy) phenyl]-acrylonitrile (2b) showed potent antispasmodic activities in vitro and in vivo (in mice).
合成了几种(Z)-2-(1,2-苯异噻唑-3-基)-3-[2-(2-哌嗪乙氧基)苯基]-丙烯腈(1a)的类似物,如(Z)-2-(1,2-苯异噻唑-3-基)-、(Z)-2-(1H-吲哚-3-基)-、(E)-2-(2-噻吩基)-和(E)-2-苯甲酰基-3-(ω-二烷基氨基醇苯基)丙烯腈(2-5),这些化合物是通过Knoevenagel缩合法合成的。去氰类似物(6)是通过Wittig反应制备的。将1与三乙基氨基甲酸盐还原得到二氢类似物(7)。对这些类似物的镇痉活性进行了研究。在这些化合物中,(Z)-2-(1,2-苯异噻唑-3-基)-3-[2-(2-哌嗪乙氧基)苯基]-丙烯腈(2a)和(Z)-2-(1,2-苯异噻唑-3-基)-3-[2-(2-吗啉乙氧基)苯基]-丙烯腈(2b)在体外和体内(小鼠)均表现出强效的抗痉挛活性。