申请人:Rhone-Poulenc Sante
公开号:US04585867A1
公开(公告)日:1986-04-29
1,2,3,4-Tetrahydro-4-quinolinones of the formula ##STR1## are prepared from a 3-anilinopropionic acid of general for formula ##STR2## which is treated successively with phosgene, with a base or by heating, and then with a Lewis acid or a strong acid. In the formulae (I) and (II), R denotes a hydrogen atom, a halogen atom, an alkyl radical (1 to 4 carbon atoms) or an alkoxy radical (1 to 4 carbon atoms), and R.sub.1 denotes a hydrogen atom or any alkyl radical (1 to 4 carbon atoms). The compounds of formula I are useful as intermediates in the production of known drugs.
公式为##STR1##的1,2,3,4-四氢-4-喹啉酮是从一般公式为##STR2##的3-苯胺丙酸制备而来的,该酸经过磷酰氯、碱或加热处理,然后再与Lewis酸或强酸处理。在公式(I)和(II)中,R代表氢原子、卤原子、烷基基团(1至4个碳原子)或烷氧基团(1至4个碳原子),R.sub.1代表氢原子或任何烷基基团(1至4个碳原子)。公式I的化合物在已知药物的生产中作为中间体是有用的。