反应详情

To a solution of 1-(2-iodophenyl)-3-isoquinolinecarboxylic acid (54.4 mg, 0.15 mmol), BOP (65.4 mg, 0.15 mmol) in DMF (6 mL) under Ar was added a solution of N-methyl 3-fluoro-2-butylamine (333.3 mg, crude, excess) and Et3N (21 μL, 0.15 mmol) in DMF (1.0 mL). The resulting mixture was stirred at ambient temperature for 7 h. Then it was quenched by adding H,O (5 mL). The mixture was extracted with CH2Cl2 (3×20 mL). The organic layers were dried (Na2SO4), filtered. The filtrate was concentrated in vacuo. The residue was purified on column chromatography (silica gel, 30% ethyl acetate/hexane, 0.05% Et3N) to give a yellow oil (36.2 mg). This oil was further purified on reverse phase HPLC (75% MeOH/H2O, 0.1% Et3N). Two major fractions were collected. The first fraction (Rt=13 min, 12 mg, 17%) was the title compound. mp 62-63.5° C. 1H NMR (CDCl3) d 1.20-1.40 (m, 3 H, CH3), 1.72-2.30 (m, 2 H, CH2), 3.01, 3.02 (two s, total 3 H, N-methyl), 4.32-4.57 (m, 2 H, CH2F), 4.60-4.71 (m, 0.5 H, CH), 4.92-5.02 (m, 0.5 H, CH), 7.21 (t, J=7.2 Hz, 1 H, aromatic), 7.32 (d, J=7.8 Hz, 1 H, aromatic), 7.46-7.64 (m, 3 H, aromatic), 7.72-7.83 (m, 1 H, aromatic), 7.95-8-19 (m, 3 H, aromatic). HRMS Cacld for C21H20FIN2O: 462.0604. Found: 462.0598.

1. customThen it was quenched
2. additionby adding H,O (5 mL)
3. extractionThe mixture was extracted with CH2Cl2 (3×20 mL)
4. dry with materialThe organic layers were dried (Na2SO4)
5. filtrationfiltered
6. concentrationThe filtrate was concentrated in vacuo
7. customThe residue was purified on column chromatography (silica gel, 30% ethyl acetate/hexane, 0.05% Et3N)