di-tert-butyl 2-(2-amino-5-fluoro-4-methylphenyl)malonate 、
tert-butyl 3-methyl-3-(4-oxo-1-piperidyl)pyrrolidine-1-carboxylate 在
crude product 、
乙腈 、
水 作用下,
以to give the title compound (365 mg, 45.8%) 1H NMR (400 MHz, CDCl3) δ ppm 1.03 (d, 3H), 1.41 (s, 29H), 1.70-1.89 (m, 2H), 1.97 (d, J=8.98 Hz, 2H), 2.16 (s, 3H), 2.23-2.46 (m, 2H), 2.61 (d, J=5.86 Hz, 1H), 2.77 (d, J=5.47 Hz, 1H), 3.04-3.61 (m, 5H), 4.14 (br. s., 1H), 4.37 (s, 1H), 6.42 (d, J=6.64 Hz, 1H), 6.87 (d, J,=,10.16 Hz, 1H)的产率得到di-tert-butyl 2-(2-(1-(1-(tert-butoxycarbonyl)-3-methylpyrrolidin-3-yl)piperidin-4-ylamino)-5-fluoro-4-methylphenyl)malonate