英文别名Risperidone Impurity 17; 3-[1-[2-(2-methyl-4-oxo-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-3-yl)ethyl]piperidin-4-yl]-2H-1,2-benzoxazol-6-one; 6,7,8,9-Tetrahydro-3-[2-[4-(6-hydroxy-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one; 3-(2-(4-(6-hydroxybenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one; 3-[2-[4-(6-hydroxy-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one 
