tert-butyl {1-[2-(7-fluoro-3-methyl-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate 、 1-[2-(4-aminopiperidin-1-yl)ethyl]-7-methoxy-1,4-dihydro-2H-3,1-benzoxazin-2-one trifluoroacetate 在
trifluoro acetate 、 title compound 作用下,
生成 1-[2-(4-Aminopiperidin-1-yl)ethyl]-7-fluoro-3-methylquinazoline-2,4(1H,3H)-dione