申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US05300515A1
公开(公告)日:1994-04-05
Anti-dementia medicaments comprising a carbamic acid derivative or their pharmaceutically acceptable acid addition salts having an anti-amnesic activity as an active ingredient are provided. The carbamic acid derivatives are represented by a general formula (1) ##STR1## wherein Ar denotes an aromatic heterocyclic ring which may have at least one substituent or its benzene-condensed ring, or phenyl group which may have at least one substituent, R.sup.1 denotes hydrogen atom or lower alkyl group, R.sup.2 denotes lower alkyl group which may be substituted with halogen atom, phenyl group which may have at least one substituent, naphthyl group, or five- or six-membered heterocyclic ring and its benzene-condensed ring, X and Y, which may be the same or different, denote sulfur atom or oxygen atom.
提供了一种包含一种碳酸酯衍生物或其药学上可接受的酸盐作为活性成分的抗痴呆药物,具有抗遗忘作用。碳酸酯衍生物由通式(1)表示:
其中Ar表示芳香族杂环环,可能具有至少一个取代基或其苯缩环,或苯基,可能具有至少一个取代基,R1表示氢原子或较低的烷基,R2表示较低的烷基,可以被卤素原子取代,苯基,可能具有至少一个取代基,萘基,或五元或六元杂环环及其苯缩环,X和Y可以相同或不同,表示硫原子或氧原子。