Triethylamine → HCID 68775765, compound

Participants

Reaction Steps

Isobutyl chloroformate (30 μL, 0.23 mmol) and triethylamine (30 μL, 0.23 mmol) were added to a solution of Example 292 (50 mg, 0.12 mmol) in DCM (5.0 mL) and the reaction mixture was stirred at room temperature for 1 h. N,N-Dimethylethylenediamine (60 μL, 0.58 mmol) was then added and the reaction mixture was stirred at room temperature for 72 h. The solvent was removed in vacuo and the residue was purified by preparative HPLC (pH 5.8) to give the title compound (4 mg, 6%) as a yellow solid. δH (CDCl3) 9.12 (1H, s), 8.41 (1H, br s), 7.55-7.46 (2H, m), 7.29 (1H, t, J 7.9 Hz), 7.05-7.00 (1H, m), 3.61-3.49 (6H, m), 2.90-2.77 (6H, m), 2.49 (6H, s), 2.33 (2H, s), 2.29 (2H, s), 0.90 (6H, s). LCMS (ES+) 499.3 (M+H)+.

Provenance & Evidence