反应详情

温度

65 °C

A mixture of 2-(1-(3-bromobenzyl)-5-methyl-1H-1,2,4-triazol-3-yl)-5-(4-(tert-butyl)phenyl)-1,3,4-oxadiazole (100 mg, 0.22 mmol), 1-methylpiperazine (37 μL, 0.33 mmol), NaOtBu (46.7 mg, 0.48 mmol), dicyclohexyl(2′,6′-diisopropoxy-[1,1′-biphenyl]-2-yl)phosphine (10.3 mg, 0.022 mmol) and chloro-(2-dicyclohexylphosphino-2′,6′-diisopropoxy-1,1′-biphenyl)[2-(2′-amino-1,1′-biphenyl)]palladium(II)(17.7 mg, 0.022 mmol) in THF (1 mL) was degassed (freeze-pump-thaw, under N2). The reaction mixture was stirred at 65° C. for 2 h, and then the solvent was removed under reduced pressure. The crude reaction mixture was dissolved in DMSO and was purified by pre-HPLC (Mobile phase: A=0.1% CF3CO2H/H2O, B=MeCN; Gradient: B=30%-70% in 12 min; Column: Waters C18) to afford 2-(4-(tert-butyl)phenyl)-5-(5-methyl-1-(3-(4-methylpiperazin-1-yl)benzyl)-1H-1,2,4-triazol-3-yl)-1,3,4-oxadiazole (4.5 mg, 4.3%) as a white solid. MS (ES+) C27H33N7O requires: 471. found: 472 [M+H]+; 1H-NMR (500 MHz, CDCl3) δ ppm 8.13 (d, J=8.2 Hz, 2H), 7.52 (d, J=8.6 Hz, 2H), 7.25 (d, J=7.9 Hz, 1H), 6.88 (d, J=8.5 Hz, 1H), 6.78 (t, J=2.0 Hz 1H), 6.70 (d, J=7.8 Hz, 1H), 5.38 (s, 2H), 3.27-3.20 (m, 4H), 2.67-2.58 (m, 4H), 2.51 (s, 3H), 2.40-2.37 (m, 3H), (1.36 (s, 9H).

1. customwas degassed (freeze-pump-thaw, under N2)
2. customthe solvent was removed under reduced pressure
3. customThe crude reaction mixture
4. customwas purified by pre-HPLC (Mobile phase
5. waitGradient: B=30%-70% in 12 min