反应详情

To a mixture of 1-(3-iodophenyl)-3-isoquinolinecarboxylic acid (0.1186 g, 0.32 mmol), BOP (0.1402 g, 0.32 mmol), Methylamine hydrochloride (0.083 g, 1.23 mmol) in DMF (10 mL) was added Et3N (0.17 mL, 1.22 mmol). The resulting mixture was stirred under Ar at room temperature for 7 h and quenched by adding H2O (10 mL). The mixture was extracted with CH2Cl2 (3×15 mL). The combined organic layers were dried (MgSO4), filtered. The filtrate was concentrated in vacuo. The residue was purified on column (SiO2, 35% ethyl acetate/hexane, 0.1% Et3N), thereby giving a white solid (59.2 mg, 48%). mp 172.1-173.6° C. 1H NMR (CDCl3) d 3.03, 3.04 (two s, 3 H, N-methyl), 7.24 (t, J=8.7 Hz, 1 H, aromatic), 7.55-7.65 (m, 2 H, aromatic), 7.71 (t, J=8.1 Hz, 1 H, aromatic), 7.82 (d, J=8.7 Hz, 1 H, aromatic), 7.95-8.05 (m, 3 H, aromatic), 8.19 (br s, 1 H, CONH), 8.57 (s, 1 H, aromatic). 13C NMR (CDCl3) d 26.16 (q, N-methyl), 94.24 (s, C--I), 119.86 (d, aromatic), 127.15 (d, aromatic), 128.70 (d, aromatic), 128.96 (d, aromatic), 129.13 (d, aromatic), 129.91 (d, aromatic), 130.77 (d, aromatic), 137.14 (s, aromatic), 137.85 (d, aromatic), 138.57 (d, aromatic), 140.99 (s, aromatic), 142.67 (s, aromatic), 157.62 (s, aromatic), 165.25 (s, CO). HRMS calcd. for C17H13IN2O: 388.0073. Found: 388.0071.

1. customquenched
2. additionby adding H2O (10 mL)
3. extractionThe mixture was extracted with CH2Cl2 (3×15 mL)
4. dry with materialThe combined organic layers were dried (MgSO4)
5. filtrationfiltered
6. concentrationThe filtrate was concentrated in vacuo
7. customThe residue was purified on column (SiO2, 35% ethyl acetate/hexane, 0.1% Et3N)