申请人:John Wyeth & Brother Limited
公开号:US04296029A1
公开(公告)日:1981-10-20
2-Oxo-hexahydroazepine, -piperidine or pyrrolidines of formula ##STR1## wherein n is 2,3 or 4, R is hydrogen, lower alkyl, aryl(lower)alkyl, loweralkenylmethyl or cycloalkylmethyl, R.sup.1 is hydrogen or lower alkyl and R.sup.2 is hydrogen, lower alkyl or aryl(lower)alkyl are prepared by a novel process involving reaction of an anion of a lactam of formula ##STR2## where R.sup.3 is lower alkyl, aryl(lower)alkyl, trialkyl-, triaryl- or triarylalkyl-silyl with a benzyne of formula ##STR3## where R.sup.4 is lower alkyl, aryl(lower)alkyl or trialkyl-, triaryl- or triarylalkyl-silyl. The products are useful as intermediates for preparing pharmacologically active 2-unsubstituted -hexahydroazepine, -piperidine and pyrrolidine derivatives.
公式为##STR1##的2-氧代-己内酰胺,-哌啶或吡咯烷化合物,其中n为2、3或4,R为氢、低碳基、芳基(低)烷基、低烯基甲基或环烷基甲基,R.sup.1为氢或低碳基,R.sup.2为氢、低碳基或芳基(低)烷基,通过一种新颖的方法制备,其中包括将公式为##STR2##的内酰胺阴离子(其中R.sup.3为低碳基、芳基(低)烷基、三烷基、三芳基或三芳基烷基硅烷基)与公式为##STR3##的苯并环丙烯反应。所得产物可用作制备具有药理活性的2-未取代-己内酰胺,-哌啶和吡咯烷衍生物的中间体。