反应详情

tert-butyl 4-(3-acrylamido-4-((tert-butoxycarbonyl)(6-(3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methyl-3-((2-(trimethylsilyl)ethoxy)methyl)ureido)pyrimidin-4-yl)amino)phenyl)piperazine-1-carboxylate (59 g, 0.06 mmol) was stirred in DCM (2.0 ml). TFA (97 μl, 1.3 mmol) was added and the mixture was stirred at room temperature for 6 hours. The reaction mixture was evaporated. The remaining residue was dissolved in DCM and washed with saturated NaHCO3, dried over MgSO4 and evaporated. The resulting material was dissolved in THF (2.0 ml) and NH4OH (74 μl, 1.9 mmol) was added. The reaction mixture was stirred at room temperature for 5 minutes. The reaction mixture was evaporated to obtain the title compound (34 mg, yield: 90%) which was taken to the next step without further purification. 1H-NMR (400 MHz, DMSO-d) δ 2.62 (br. s., 4H) 3.08-3.27 (m, 7H) 3.77-4.03 (m, 6H) 5.72 (d, 1H) 6.11-6.34 (m, 2H) 6.40-6.62 (m, 1H) 6.70-6.98 (m, 2H) 7.22-7.37 (m, 2H) 8.32 (s, 1H) 8.70 (s, 1H) 9.58 (br. s., 1H) 12.06 (s, 1H); ESI-MS: 601 [M+H]+.

1. customThe reaction mixture was evaporated
2. dissolutionThe remaining residue was dissolved in DCM
3. washwashed with saturated NaHCO3
4. dry with materialdried over MgSO4
5. customevaporated
6. dissolutionThe resulting material was dissolved in THF (2.0 ml)
7. stirringThe reaction mixture was stirred at room temperature for 5 minutes
8. customThe reaction mixture was evaporated