1,2-Dichloroethane → HCID 58066259, compound

Participants

Reaction Steps

To a solution of Intermediate 74 (0.112 g, 0.31 mmol) and Intermediate 3 (0.067 mg, 0.26 mmol) in MeCN (2 mL) was added EDC (0.069 g, 0.36 mmol). The reaction mixture was stirred at room temperature for 18 hours. The reaction mixture was diluted with pyridine (2 mL) and heated at 150° C. in the microwave for 30 minutes. The reaction was repeated and combined to work up. The solvent was removed in vacuo and the residue dissolved in DCM. The mixture was washed with water and the organic phase passed through a hydrophobic frit. The solvent was evaporated in vacuo. The residue was purified by SCX chromatography. The material was treated with a 4N solution of HCl in dioxane (4 mL) and the resulting mixture was stirred at 70° C. for 18 hours. The solvent was evaporated in vacuo and the residue purified by preparative HPLC, affording the title compound as an orange oil. 1H NMR (CDCl3, 400 MHz) δ 8.98 (1H, br s), 8.50 (1H, s), 8.43-8.34 (2H, m), 8.14 (2H, d, J=8.0 Hz), 7.34-7.21 (4H, m), 7.12 (1H, d, J=7.4 Hz), 4.26-4.18 (4H, m), 3.56 (2H, s), 3.32 (3H, s), 2.62 (3H, s), 2.07 (3H, s). LC/MS (Method A): 526 (M+H)+. HPLC (Method F) Rt 3.74 min (Purity: 99.4%).

Provenance & Evidence