申请人:Selvi & C. S.p.A.
公开号:US04457931A1
公开(公告)日:1984-07-03
Compounds of formula I ##STR1## are described in which R is an aryl, substituted aryl, aralkyl or heterocyclic radical; R.sup.1 is hydrogen or alkyl of 1-4 carbon atoms; A is a saturated, aliphatic hydrocarbon chain, which is linear or branched; R.sup.2 and R.sup.3 are the same or different and are hydrogen, linear or branched alkyl, aryl, substituted aryl or together with the nitrogen atom to which they are connected and together with y form a ring wherein y is a methylene group or a heteroatom, which is selected from the group consisting of nitrogen, oxygen and sulfur; R.sup.4 is hydrogen or linear or branched alkyl; X is halogen or an organic or inorganic anion; n is 0; 1; 2; 3 or in the case of a bifunctional acid, n is equal to 0.5; 1.5; 2.5 and their enantiomers and diestereoisomers. Several methods of preparation of the novel compounds are described.
该文描述了式子I的化合物,其中R是芳基,取代芳基,芳基烷基或杂环基;R.sup.1是氢或1-4个碳原子的烷基;A是饱和的,直链或支链的脂肪烃链;R.sup.2和R.sup.3相同或不同,是氢、直链或支链烷基、芳基、取代芳基或与它们连接的氮原子一起形成环,其中y是亚甲基或杂原子,所述杂原子选自氮、氧和硫的群;R.sup.4是氢或直链或支链烷基;X是卤素或有机或无机阴离子;n为0、1、2、3,或在双官能酸的情况下,n等于0.5、1.5、2.5以及它们的对映异构体。文中还描述了几种制备这些新化合物的方法。