作者:Tong Sun、Jiaojiao Xu、Min Ji、Peng Wang
DOI:10.3184/174751916x14682453281177
日期:2016.8
An improved route for the synthesis of momelotinib has been developed. A nucleophilic addition reaction between the starting material, 4-morpholinoaniline, and cyanamide gave the 1-(4-morpholinophenyl)guanidine. Simultaneously, methyl 4-acetylbenzoate was converted into methyl (E)-4-[3-(dimethylamino)acryloyl]benzoate in the presence of N,N-dimethylformamide dimethylacetal. The enaminone intermediate
已开发出合成莫罗替尼的改进路线。原料、4-吗啉代苯胺和氰胺之间的亲核加成反应得到 1-(4-吗啉代苯基)胍。同时,在 N,N-二甲基甲酰胺二甲基缩醛的存在下,4-乙酰苯甲酸甲酯转化为 (E)-4-[3-(二甲氨基)丙烯酰基]苯甲酸甲酯。然后将烯胺酮中间体在升高的温度下在醇碱中与 1-(吗啉代苯基)胍缩合以形成所需的嘧啶,将其水解为相应的酸。该工艺操作简单,无需贵金属催化剂,适合工业化生产。最后,通过酰胺化反应获得了所需的化合物莫罗替尼。