反应详情

The title compound was prepared in a similar manner as described for Intermediate 1f, from 4-hydroxy-2-hydroxymethyl-2-methyl-2,3-dihydro-benzofuran-6-carboxylic acid tert-butyl ester (227c) and azetidin-1-yl-(2,4-difluoro-phenyl)-methanone. 1H NMR (400 MHz, CDCl3) δ 7.48-7.56 (m, 1 H) 7.24 (s, 1 H) 7.20 (d, J=1.26 Hz, 1 H) 6.77 (dd, J=8.59, 2.53 Hz, 1 H) 6.66 (dd, J=11.24, 2.40 Hz, 1 H) 4.21 (t, J=7.83 Hz, 2 H) 4.11-4.17 (m, 2 H) 3.65-3.74 (m, 1 H) 3.55-3.63 (m, 1 H) 3.13 (d, J=16.67 Hz, 1 H) 2.76 (d, J=16.67 Hz, 1 H) 2.34 (dt, J=15.60, 7.74 Hz, 2 H) 1.89-1.97 (m, 1 H) 1.56 (s, 9 H) 1.44 (s, 3 H); LCMS for C25H28FNO6 m/z 458.20 (M+H)+.