申请人:Roussel Uclaf
公开号:US04390697A1
公开(公告)日:1983-06-28
A novel process for the preparation of triazoloquinazolinones of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, fluorine, chlorine, bromine, --NO.sub.2, --CF.sub.3, --CH.sub.3 and --OCH.sub.3, n is an integer from 2 to 5, R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms and hydroxyalkyl of 1 to 5 carbon atoms or taken together with the nitrogen atom which they are attached form a saturated heterocycle optionally containing another heteroatom and optionally substituted with at least one member of the group consisting of hydroxy, alkyl and hydroxy alkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, acyl of an aliphatic carboxylic acid of 1 to 5 carbon atoms, alkoxycarbonyl of 2 to 6 carbon atoms, aryl and aryl substituted with halogen or --CF.sub.3 and their non-toxic, pharmaceutically acceptable acid addition salts having antihistaminic and bronchospasmolytic activity and novel intermediates.
一种用于制备三唑喹唑啉酮的新工艺,其化学式为##STR1##其中X选自氢、氟、氯、溴、--NO.sub.2、--CF.sub.3、--CH.sub.3和--OCH.sub.3组成的组,n为2到5之间的整数,R.sub.1和R.sub.2分别选自氢、1到5个碳原子的烷基和1到5个碳原子的羟基烷基,或者与它们连接的氮原子一起形成一个饱和杂环,该杂环可以包含另一个杂原子,并且可以被至少一种羟基、烷基和1到5个碳原子的羟基烷基、3到6个碳原子的环烷基、1到5个碳原子的脂肪羧酸酰基、2到6个碳原子的烷氧羧酰基、芳基和芳基取代物、卤素或--CF.sub.3组成的组取代,以及其无毒、药理学上可接受的酸盐,具有抗组胺和支气管痉挛活性以及新的中间体。