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.
2-氧代六氢氮杂环庚烷、哌啶或吡咯烷的公式##STR1##,其中n为2、3或4,R为氢、低级烷基、芳基(低级)烷基、低级烯基甲基或环烷基甲基,R.sup.1为氢或低级烷基,R.sup.2为氢、低级烷基或芳基(低级)烷基,是通过将下式##STR2##的lactam阴离子与下式##STR3##的苯炔反应的新颖过程而制得的。其中R.sup.3为低级烷基、芳基(低级)烷基、三烷基、三芳基或三芳基烷基硅基,R.sup.4为低级烷基、芳基(低级)烷基或三烷基、三芳基或三芳基烷基硅基。这些产品作为制备具有药理活性的2-未取代六氢氮杂环庚烷、哌啶和吡咯烷衍生物的中间体是有用的。