Water → HCID 46832297, compound

Participants

Reaction Steps

A 20% toluene solution of phosgene (0.590 mL, 1.121 mmol) was added dropwise at room temperature to a stirred solution of 4-(3-amino-4-hydroxyphenyl)-N-cyclopentyl-N-methyl-1H-imidazole-1-carboxamide (0.259 g, 0.862 mmol) in dichloromethane (5 mL) and the off-white suspension was allowed to stir for 5 h. Water was added and the organic layer was diluted with a mixture of dichloromethane/isopropanol (7:3). The organic layer was separated, dried (MgSO4), filtered and evaporated to give an off-white solid that was triturated with hot methanol. Filtration and drying gave the product as an off-white solid (90 mg, 30%).

Provenance & Evidence