申请人:Ciba-Geigy Corporation
公开号:US04251542A1
公开(公告)日:1981-02-17
The present invention provides new imino compounds having the formula I ##STR1## wherein R.sub.1 represents an aliphatic or cycloaliphatic hydrocarbon radical, unsubstituted or substituted phenyl, or phenyl-lower alkyl or diphenyl-lower alkyl, which radicals are unsubstituted or substituted in the phenyl ring(s), R.sub.2 represents unsubstituted or substituted phenyl, unsubstituted or substituted monocyclic heteroaryl or lower alkyl, R.sub.3 represents hydrogen, lower alkyl, a carbonyl group linked with R.sub.2 to form a five-membered ring, or the group R.sub.6 --CO wherein R.sub.6 represents lower alkyl or unsubstituted or substituted phenyl, R.sub.4 represents, if present, hydrogen or lower alkyl which is independent or is linked with R.sub.1 to form a five- to seven-membered ring which can contain as ring members two aromatic ring carbon atoms of an unsubstituted or substituted phenyl or phenyl-lower-alkyl radical R.sub.1, and as a six- or seven-membered ring also epoxy or lower alkylimino which is separated by two, or at least two, carbon atoms from the nitrogen atom given in the formula I, R.sub.5 represents, if present, hydrogen or lower alkyl, A represents a straight- or branched-chain lower alkylene having 2 to (5-n.sub.1 -n.sub.2) chain members, Z represents epoxy, epithio, imino or lower alkylimino, and m.sub.1 and m.sub.2 represent 0 or 1 and together always represent 1, n.sub.1 represents 1 or, if Z represents imino or lower alkylimino and n.sub.2 represents 1, can also represent 0, n.sub.2 represents 0 or 1, and wherein two additional bonds, either corresponding to the dashed lines or corresponding to the dotted lines, are present, with m.sub.1 representing 0 in the former case and m.sub.2 representing 0 in the latter case, and the acid addition salts, in particular the pharmaceutically acceptable acid addition salts thereof. These new substances possess valuable pharmacological properties, particularly hypoglycaemic activity, and can be used as oral antidiabetics. Specific embodiments are 2-[2-(cyclohexylimino)-2-phenyl-ethylidene]-pyrrolidine and 2-[2-(cis-2-cyclohexyl-cyclopentylimino)-2-phenylethylidene]-pyrrolidine, and their pharmaceutically acceptable acid addition salts.
本发明提供了具有以下结构式I的新的亚胺化合物:##STR1## 其中,R.sub.1代表脂肪族或环脂族烃基,未取代或取代的苯基,或苯基-较低烷基或二苯基-较低烷基,所述基团在苯环中未取代或取代,R.sub.2代表未取代或取代的苯基,未取代或取代的单环杂芳基或较低烷基,R.sub.3代表氢、较低烷基、与R.sub.2连接形成五元环的羰基基团,或R.sub.6-CO基团,其中R.sub.6代表较低烷基或未取代或取代的苯基,R.sub.4代表氢或较低烷基(如果存在),其独立或与R.sub.1连接形成五至七元环,该环可以包含未取代或取代的苯基或苯基-较低烷基基团R.sub.1的两个芳环碳原子作为环成员,以及六元或七元环中也可以是离氮原子(在式I中给出)两个或至少两个碳原子分离的环氧或较低烷基亚胺基团,R.sub.5代表氢或较低烷基(如果存在),A代表具有2到(5-n.sub.1-n.sub.2)个链成员的直链或支链较低烷基,Z代表环氧、环硫、亚胺或较低烷基亚胺,m.sub.1和m.sub.2代表0或1,并且总是一起代表1,n.sub.1代表1或,如果Z代表亚胺或较低烷基亚胺且n.sub.2代表1,则也可以代表0,n.sub.2代表0或1,其中存在两个额外的键,或者对应于虚线或对应于点线,m.sub.1在前一种情况下代表0,在后一种情况下m.sub.2代表0,并且酸加成盐,特别是其药学上可接受的酸加成盐。这些新物质具有有价值的药理学特性,特别是降血糖活性,并可用作口服抗糖尿病药物。具体实施例是2-[2-(环己基亚胺)-2-苯乙基]-吡咯烷和2-[2-(顺-2-环己基-环戊基亚胺)-2-苯乙基]-吡咯烷及其药学上可接受的酸加成盐。