反应详情

tert-Butyl(E)-2-oxo-3-((3-((E)-2-(pyridin-4-yl)vinyl)-1H-indazol-6-yl)-methyl-ene)indolin-5-ylcarbamate (13 mg, 0.027 mmol) was dissolved into CH2Cl2 (1.0 mL) and then trifluoroacetic acid (0.1 mL) was added and the reaction stirred for 1 hour. The solvent was removed and the residue titurated with ether/EtOAc to give after drying 4.6 mg, 29% of the title compound as an orange powder. 1H NMR (400 MHz, CD3OD) δ 8.68 (d, J=5.8 Hz, 2H), 8.31 (d, J=8.7 Hz, 1H), 8.21-8.12 (m, 3H), 7.97 (s, 1H), 7.88 (s, 1H), 7.70 (d, J=16.8 Hz, 1H), 7.62-7.57 (m, 2H), 7.18 (d, J=8.8 Hz, 1H), 6.99 (d, J=8.6 Hz, 1H); MS ESI 380.1 [M+H]+, calcd for [C23H17N5O+H]+ 380.15.

1. customThe solvent was removed
2. customto give
3. dry with materialafter drying 4.6 mg, 29% of the title compound as an orange powder