反应详情

A suspension of (1S,3R)-3-aminocyclohexanol (46 mg, 0.40 mmol), N,N-diisopropylethylamine (0.21 mL, 1.20 mmol) and dichloromethane (15 mL) under argon was treated with a dichloromethane (15 mL) solution of 4-chloro-5-(3,4-difluorophenyl)-isoxazole-3-carbonyl chloride (112 mg, 0.40 mmol) at room temperature. After stirring for 2 hours the volatiles were removed in vacuo, and the residue was purified initially by silica gel chromatography, eluting with dichloromethane to 4% methanol in dichloromethane followed by RP HPLC (H2O/MeCN/MeOH 48/48/4 [vol./vol.]) to afford the title compound: (86 mg, 0.24 mmol).

1. customwere removed in vacuo
2. customthe residue was purified initially by silica gel chromatography
3. washeluting with dichloromethane to 4% methanol in dichloromethane