反应详情

A solution of HCl in 1,4-dioxane (4.0 M, 0.5 mL, 2 mmol) was added to 2-{3-[(2,2-difluoro-2-phenylethyl)amino]-6-chloro-2-fluorophenyl}-N-({6-[(tert-butoxy) carbonylamino]-2,4-dimethyl(3-pyridyl)}methyl) acetamide (18.5 mg, 32 μmol), as prepared in the preceding step. After stirring at ambient temperature for 3 hours, solid precipitated. A solution of MeOH (0.1 mL) in DCM (1 mL) was added to dissolve the solid. After stirring for another 2 hours the reaction was concentrated to give a brown solid, that was washed with ether and DCM and dried in vacuo to produce the title compound (12.6 mg, 77% yield) as a pale brown solid. 1H-NMR (400 MHz, CD3OD) δ 8.40 (bs, 1H), 7.53-7.51 (m, 2H), 7.47-7.40 (m, 3H), 6.93 (dd, J=8.8, 1.3 Hz, 1H), 6.68 (s, 1H), 6.64 (t, J=9.1 Hz, 1H), 4.31 (d, J=4.6 Hz, 2H), 3.81 (t, J=13.8 Hz, 2H), 3.67 (d, J=1.2 Hz, 2H), 2.54 (s, 3H), 2.42 (s, 3H). Mass spectrum (LCMS, ESI) calc'd for C24H25ClF3N4O (M+H): 477.2. Found: 477.5.

1. customas prepared in the preceding step
2. customsolid precipitated
3. additionA solution of MeOH (0.1 mL) in DCM (1 mL) was added
4. dissolutionto dissolve the solid
5. stirringAfter stirring for another 2 hours the reaction
6. concentrationwas concentrated
7. customto give a brown solid, that
8. washwas washed with ether and DCM
9. customdried in vacuo