反应详情

To the solution of 3-({[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}amino)-3-oxopropanoic acid (0.0779 g, 0.200 mmol) in DCM (1 mL) was added 1,1-dimethylethyl 4-{[3′-(aminomethyl)-3-biphenylyl]methyl}-1-piperidinecarboxylate (0.0837 g, 0.220 mmol), HBTU (0.0910 g, 0.240 mmol), TEA (0.0563 mL, 0.400 mmol) and was stirred at room temperature for 16 hours. The reaction mixture was concentrated on Glas-Col evaporator, purified by Gilson HPLC and concentrated with Biotachi evaporator. The crude product was dissolved in DCM (0.6 mL) and TFA (0.2 mL) was added. The resultant mixture was left at room temperature for 1 hour before being concentrated on Glas-Col evaporator, purified by Gilson HPLC (with 0.1% TFA) and basified with amine cartridge to afford the title compound 0.0329 g (25.24%). LC-MS m/z 652 (M+H)+; 1H NMR (400 MHz, CD3OD) δ ppm 1.38 (t, J=7.65 Hz, 3H) 1.49 (t, J=7.28 Hz, 5H) 1.72-1.85 (m, 2H) 1.87-2.02 (m, 5H) 2.69 (d, J=6.78 Hz, 2H) 2.94 (td, J=12.80, 2.26 Hz, 2H) 3.05 (q, J=7.53 Hz, 2H) 3.37 (d, J=12.55 Hz, 2H) 3.59 (td, J=11.48, 2.13 Hz, 2H) 3.92 (dt, J=1.80, 3.51 Hz, 2H) 4.19-4.30 (m, 1H) 4.42-4.50 (m, 4H) 4.52 (s, 2H) 7.19 (d, J=7.53 Hz, 1H) 7.27-7.32 (m, 1H) 7.37 (td, J=7.59, 3.14 Hz, 2H) 7.44-7.52 (m, 3H) 7.57 (s, 1H) 8.24 (s, 1H).

1. concentrationThe reaction mixture was concentrated on Glas-Col evaporator
2. custompurified by Gilson HPLC
3. concentrationconcentrated with Biotachi evaporator
4. dissolutionThe crude product was dissolved in DCM (0.6 mL)
5. additionTFA (0.2 mL) was added
6. waitThe resultant mixture was left at room temperature for 1 hour
7. concentrationbefore being concentrated on Glas-Col evaporator
8. custompurified by Gilson HPLC (with 0.1% TFA)