反应详情

To a solution of Example 15 (41.5 mg, 0.1 mmol) in 1 ml THF, were added TEA (0.0194 ml, 0.14 mmol) and chloroacetyl chloride (0.0095 ml, 0.12 mmol). After 15 min. at RT, the reaction mixture was evaporated to dryness to yield 47.8 mg of crude intermediate. To this intermediate (37.7 mg, 0.077 mmol) in 1 ml THF, were added PS-DIEA (Argonaut, 21 mg, 0.06 mmol), benzylamine (4.9 μl, 0.045 mmol) and PS-DMAP (Argonaut, 20 mg, 0.06 mmol). The reaction mixture was stirred for 24 h at RT before evaporation to dryness. The residue was purified by reverse phase HPLC (gradient from CH3CN/H2O/TFA: 5/95/0.05 to CH3CN/H2O/TFA: 80/20/0.05) to yield the titled compound (4.2 mg). Retention time: 10.65 min., 563 (M+1); (LCMS conditions: HP 1100 MSD platform (APCI−, DAD (210-400 nm)), Column: TSK gel Super ODS 4.6 mm ID×10 cm, Flow rate: 1 mL/min, Gradient: from 5% to 95% eluent B in 15 min., with a plateau with 95% eluent B during 5 min. Eluent A: H2O (0.1% ammonium formate), Eluent B: CH3CN). 1H NMR (CDCl3): 7.75-7.6 (2H, d), 7.6-7.15 (8H, m), 7.75 (2H, d), 4.25 (2H, s), 4.2-3.6 (7H,m), 3.3-3.05 (3H, m).

1. customthe reaction mixture was evaporated to dryness
2. customto yield 47.8 mg of crude intermediate
3. customThe residue was purified by reverse phase HPLC (gradient from CH3CN/H2O/TFA: 5/95/0.05 to CH3CN/H2O/TFA: 80/20/0.05)