苯甲酸阿格列汀杂质C

(R)-2-((6-(3-((3-(2-Cyanobenzyl)-1-Methyl-2，6-Dioxo-1，2，3，6-Tetrahydropyrimidin-4-Yl)Amino)Piperidin-1-Yl)-3-Methyl-2，4-Dioxo-3，4-Dihydropyrimidin-1(2H)-Yl)Methyl)Benzonitrile