申请人:Beecham Group Limited
公开号:US04012407A1
公开(公告)日:1977-03-15
Pharmaceutical compositions are produced comprising as the active ingredient a compound of the formula ##STR1## or a pharmaceutically acceptable, nontoxic salt thereof or hydrate thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, halogen, lower alkyl or lower alkoxy, or any two of the groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4, taken together with the carbon atoms to which they are joined complete a substituted or unsubstituted carbocyclic ring, and X is a bond or an oxygen atom, is combined with a pharmaceutically acceptable, nontoxic inert diluent or carrier. Those compounds wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are not all simultaneously hydrogen are novel. When X is a bond, the compounds may be prepared by reacting an appropriately substituted 3-dyanomethylene phthalide with a base and, thereafter, if desired, converting the compound to a salt. When X is an oxygen atom, the compounds may be prepared by reacting a suitably substituted benzene derivative with an activated carbonyl group having a carbanion of the formula NC--CH--R, wherein R is a carboxylic acid ester group, and thereafter, if desired, converting the compound into a salt.
制备的药物组合物包括作为活性成分的化合物,其化学结构如下:##STR1##或其药学上可接受的、无毒的盐或水合物,其中R.sub.1、R.sub.2、R.sub.3和R.sub.4分别是氢、卤素、低碳基或低烷氧基,或者R.sub.1、R.sub.2、R.sub.3和R.sub.4中的任意两个,与它们连接的碳原子一起形成一个取代或未取代的碳环,X是一个键或一个氧原子,与药学上可接受的、无毒的惰性稀释剂或载体结合。其中R.sub.1、R.sub.2、R.sub.3和R.sub.4中并非同时都是氢的化合物是新颖的。当X是一个键时,可以通过将适当取代的3-氰甲基邻苯二甲酸酐与碱反应,然后如果需要,将化合物转化为盐来制备这些化合物。当X是一个氧原子时,可以通过将适当取代的苯衍生物与具有NC--CH--R式的羰基活化基团反应,其中R是一个羧酸酯基团,然后如果需要,将化合物转化为盐来制备这些化合物。