Phenol → 4-[4-(1-Benzyl-1H-indol-5-ylamino)-quinazolin-6-ylethynyl]-1-methyl-piperidin-4-ol

関与物質

反応条件

反応手順

In a 1 mL Wheaton vial quinazoline 22 (80 mg, 0.22 mmol) was combined with 5-amino-1-benzylindole (54 mg, 0.24 mmol), pyridinium hydrochloride (5 mg, 0.04 mmol) and phenol (104 mg, 1.11 mmol). The vial was capped and heated at 100° C. for 16 hours. After cooling the contents of the Wheaton vial were solvated in a minimal amount of EtOAc and placed atop a silica gel (5 g) column. Elution of the column with 1:1:0.1 Hexanes:EtOAc/NEt3 removed high Rf impurities. The desired product 23 (Rf 0.05, 10:1 CH2Cl2:MeOH) was eluted off with 10:1 CH2Cl2:MeOH and gave a yellow solid (65 mg, 60%). 1H NMR (DMSO d6; 400 MHz): δ: 9.88 (s, 1H, NH), 8.67 (s, 1H), 8.45 (s, 1H), 7.92 (d, 1.7 Hz), 7.76 (d, 1H, J=8.5 Hz), 7.67 (d, 1H, J=8.5 Hz), 7.50 (d, 1H, J=3.1 Hz), 7.42 (d, 1H, J=8.9 Hz), 7.35 (dd, 1H, J=8.9 Hz, 1.9 Hz), 7.31-7.18 (m, 6H), 6.48 (dd, 1H, J+3.1 Hz, 0.8 Hz), 5.41 (s, 2H), 2.97 (br, 2H), 2.67 (br, 2H), 2.47 (s, 3H), 1.92 (br, 2H), 1.82 (br, 2H). LRMS: 488.2 (MH+), 126.1.

情報源と証拠