Process for preparing nitrooxyalkyl substituted esters of carboxylic acids, intermediates useful in said process and preparation thereof
申请人:Del Soldato Piero
公开号:US20070112194A1
公开(公告)日:2007-05-17
The present invention refers to a process for preparing a compound of general formula (A), as reported in the description, wherein R is a radical of a drug 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 (B) 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,如描述中所述,其中R为药物的基团,R1-R12为氢或烷基,m、n、o、q、r和s各自独立地为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,该方法包括将通式(B)R-COOZ(B)化合物与通式(C)所述的化合物反应,其中R和Z如上定义,Z为氢或选择自Li+、Na+、K+、Ca++、Mg++、四烷基铵、四烷基磷酸盐的阳离子,通式(C)中R1-R12和m、n、o、p、q、r、s如上定义,Y为适当的离去基。