作者:Jun Peng、Yue Feng、Zhu Tao、Yingjie Chen、Xiangnan Hu
DOI:10.2174/1570178611310030003
日期:2013.4.1
A cost-effective synthetic approach to prepare vildagliptin under gentle experimental conditions has been reported
with good yield and high purity. It was initiated with L-proline via successful reaction with chloroacetyl chloride in
THF (Tetrahydrofuran) to give the 1-(2-chloroacetyl)-pyrrolidine-2-carboxylic acid, which was then treated by TCT (2, 4,
6-trichloro-1, 3, 5-triazine) in DCM (dichloromethane), and converted into 1-(2-chloroacetyl)-pyrrolidine-2-carboxamide,
then further converted into 1-(2-chloroacetyl)-pyrrolidine-2-carbonitrile after dehydrated by TCT in DMF (N, N- dimethylformamide),
the latter product was reacted with 3-aminoadamantanol to get vildagliptin. The total yield of vildagliptin
was about 48%, the purity was about 99%.
一种具有成本效益的合成方法已被报道,能够在温和的实验条件下制备维达格列iptin,收率良好且纯度高。该方法以L-脯氨酸为起始物,与氯乙酰氯在四氢呋喃(THF)中成功反应,得到1-(2-氯乙酰)-吡咯烷-2-羧酸,随后在二氯甲烷(DCM)中用TCT(2, 4, 6-三氯-1, 3, 5-三嗪)处理,转化为1-(2-氯乙酰)-吡咯烷-2-氨基甲酸酯,再经过在N,N-二甲基甲酰胺(DMF)中用TCT脱水,最终转化为1-(2-氯乙酰)-吡咯烷-2-氰,后者与3-氨基金刚烷醇反应得到维达格列iptin。维达格列iptin的总收率约为48%,纯度约为99%。