申请人:Delmar Chemicals Limited
公开号:US04048314A1
公开(公告)日:1977-09-13
The present invention is concerned with novel 4-aryl-3/4-amino/hydroxy-piperidine derivatives of the general formula I: ##STR1## wherein R.sub.1 represents hydrogen; lower alkyl; lower aralkyl; lower acyl; aminoalkyl, wherein the alkyl moiety contains 2 to 6 carbon atoms and the amino moiety may be mono- or dialkyl substituted --(CH.sub.2).sub.n --COOH; --(CH.sub.2).sub.n --OH; ##STR2## wherein X is hydrogen or halogen and n is 1, 2, 3 or 4; one of R.sub.2 and R.sub.3 represents a cyano, or a free amino group or a derivative thereof and the other represents a free or protected hydroxyl group; or R.sub.2 represents an azido group when R.sub.3 represents a free or protected hydroxyl group, or R.sub.2 and R.sub.3 together with their associated ring carbons represent an oxazepine ring, and Ar represents an aryl group which may be substituted by lower alkyl, lower alkoxy, halogen or CF.sub.3, as well as addition salts thereof with organic or inorganic acids. Compounds of formula I generally have useful biological properties and in particular, some such compounds had been found to exhibit inter alia, significant antidepressant activity. Illustrative of compounds of formula I is 1-methyl-4-phenyl-4-acetoxy-3-(4-piperidinyl)piperidine. The present invention also provides processes for the production of, and pharmaceutical compositions containing the novel compounds of formula I.
本发明涉及一种新的4-芳基-3/4-氨基/羟基-哌啶衍生物,其通式为I:##STR1##其中R.sub.1代表氢;低碳基;低芳基烷基;低酰基;氨基烷基,其中烷基部分含2至6个碳原子,氨基部分可能为单烷基或二烷基取代--(CH.sub.2).sub.n --COOH;--(CH.sub.2).sub.n --OH;##STR2##其中X为氢或卤素,n为1、2、3或4;R.sub.2和R.sub.3中的一个代表氰基或自由氨基基团或其衍生物,另一个代表自由或受保护的羟基基团;或当R.sub.3代表自由或受保护的羟基基团时,R.sub.2代表叠氮基,或R.sub.2和R.sub.3与它们相关的环碳共同代表噁唑环,Ar代表芳基基团,该基团可能被低碳基,低烷氧基,卤素或CF.sub.3取代,以及其与有机或无机酸的加合盐。通式I的化合物通常具有有用的生物学性质,特别是一些这样的化合物已被发现具有显著的抗抑郁活性。通式I的化合物的例子包括1-甲基-4-苯基-4-乙酰氧基-3-(4-哌啶基)哌啶。本发明还提供了制备通式I的新化合物的方法和含有这些化合物的药物组合物。