A process for making a compound of formula I wherein the substituents are as described in the specification comprising reacting a ketone of formula II with succinic anhydride and an alkoxide base to form a compound of formula III
1
which is reacted with a compound of formula IV to form a compound of V
2
and reacting with an alcohol to form the corresponding ester of formula VI
3
and reacting the ester with N-methylhydroxylamine.
一种制备公式I化合物的过程,其中取代基如规范所述,包括将公式II的酮与
琥珀酸酐和烷氧基碱反应,形成公式III1的化合物,然后将其与公式IV的化合物反应,形成V2的化合物,并与醇反应形成相应的酯化物公式VI3,最后将酯化物与N-甲基
羟胺反应。