[EN] PROCESS FOR PREPARING NITROOXYDERIVATIVES OF NAPROXEN<br/>[FR] PROCEDE DE PREPARATION DE DERIVES NITROOXY DU NAPROXENE
申请人:NICOX SA
公开号:WO2004020384A1
公开(公告)日:2004-03-11
The present invention refers to a process for preparing a compound of general formula (A), wherein R is a radical of naproxen or bromonaproxen and R1-R12 are hydrogen or alkyl groups, m, n, o, q, r and s are each independently an integer from 0 to 6, and p is 0 or 1, and X is O, S, SO, SO2, NR13 or PR13 or an aryl, heteroaryl group, said process comprising reacting a compound of formula (B) : R-COOZ wherein R is as defined above and Z is hydrogen or a cation selected from: Li+, Na+, K+, Ca++, Mg++, tetralkylammonium, tetralkylphosphonium, with a compound of formula (C), as reported in the description, wherein R1-R12 and m, n, o, p, q, r, s are as defined above and Y is a suitable leaving group.
本发明涉及一种制备通式(A)化合物的方法,其中R是萘普生或溴萘普生的基团,R1-R12是氢或烷基,m,n,o,q,r和s分别独立地为0到6的整数,p为0或1,X为O,S,SO,SO2,NR13或PR13或芳基,杂环基团,所述方法包括将通式(B)的化合物与通式(C)的化合物反应,其中R-COOZ的R如上所述,Z为氢或选自:Li+,Na+,K+,Ca++,Mg++,四烷基铵,四烷基膦,通式(C)中的R1-R12和m,n,o,p,q,r,s如上所述,Y为适当的离去基。