申请人:Rhone-Poulenc Sante
公开号:US04456758A1
公开(公告)日:1984-06-26
New heterocyclic nitriles of the formula: ##STR1## wherein (i) Het represents a heterocyclic radical of aromatic character containing one or two nitrogen atoms selected from pyrid-3-yl, pyrid-4-yl, pyridazinyl, pyrazinyl, pyrimidinyl, quinolyl, imidazolyl, naphthyridinyl, quinoxalinyl and quinazolinyl, X represents an oxygen atom and Y represents a valency bond or a methylene radical, or altenatively X represents a sulphur atom and Y represents a sulphur atom, a valency bond or a methylene radical, or (ii) Het represents the pyrid-2-yl radical, X represents an oxygen atom and Y represents a valency bond or a methylene radical, or alternatively X represents a sulphur atom and Y represents a sulphur atom or a methylene radical, are useful, in particular, as intermediates for the preparation of therapeutically useful heterocyclic thioformamides by converting the depicted cyano radical into a grouping --CSNHR wherein R represents a hydrogen atom or an alkyl (C.sub.1-4) radical.
新的杂环腈的化学式:##STR1##其中(i) Het代表含有一个或两个氮原子的芳香性质的杂环基团,选择自吡啶-3-基、吡啶-4-基、吡啶嗪基、吡嗪基、嘧啶基、喹啉基、咪唑基、萘啶基、喹喹啉基和喹啉基,X代表氧原子,Y代表一个价键或一个亚甲基基团,或者选择X代表硫原子,Y代表硫原子、一个价键或一个亚甲基基团,或(ii) Het代表吡啶-2-基基团,X代表氧原子,Y代表一个价键或一个亚甲基基团,或者选择X代表硫原子,Y代表硫原子或一个亚甲基基团,这些杂环腈在特定情况下可作为制备具有治疗作用的杂环硫代甲酰胺的中间体,通过将所示的氰基转化为一个基团--CSNHR,其中R代表氢原子或烷基(C.sub.1-4)基团。