申请人:Sandoz Inc.
公开号:US03931183A1
公开(公告)日:1976-01-06
Anti-histaminics of the formula ##SPC1## Wherein R.sub.1 is alkyl, alkenyl or phenalkyl, R.sub.2 and R.sub.3 are alkyl or alkenyl and R' is optional are prepared by alkylating or alkenylating a 1-substituted-2-monosubstituted-amino pyrido 2,3-d pyrimidin-4(1H)-one with an alkyl halide or alkenyl halide.
公式为##SPC1##的抗组胺药物,其中R.sub.1是烷基、烯基或苯基甲基,R.sub.2和R.sub.3是烷基或烯基,R'是可选的,是通过用烷基卤化物或烯基卤化物烷基化或烯基化1-取代-2-单取代氨基吡啶2,3-d嘧啶-4(1H)-酮制备的。