Trimethylaluminum → HCID 178489760, compound

Participants

Reaction Steps

4-(1,4-diazepan-1-yl)-N-[5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-yl]benzamide was prepared following the procedure as outlined for Example 99, starting from ethyl 4-(1,4-diazepan-1-yl)benzoate (0.497 g, 2 mmol) and 5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-amine (0.495 g, 2.00 mmol) and 2M trimethylaluminium (2.50 mL, 5.0 mmol) in toluene (10 ml). The crude product was purified by silica column chromatography, eluting with a gradient of 0 to 10% 2.5 M ammonia MeOH in DCM. Fractions containing the product were evaporated to dryness and further purified by preparative HPLC, using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford the title compound (0.024 g, 2.67%) as a white solid.

Provenance & Evidence