Phosphate → HCID 178462428, compound

Participants

Reaction Steps

4-[(1E,3E)-4-[trans-5-[[(1R,2R)-2-(2,4-Difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]thio]-1,3-dioxan-2-yl]-1,3-butadienyl]-3-fluorobenzonitrile (4.90 g, 9.03 mmol) described in Reference example 1 and 1,1′-carbonyldiimidazole (1.53 g, 9.44 mmol) were dissolved in dichloromethane (20 ml). To the mixture was added sodium hydride (55% dispersion in mineral oil; 10 mg, 2.3×10−4 mol), and the reaction mixture was heated under reflux for 3 hours with stirring. After cooling, a phosphate buffer solution (pH 7.4) was added thereto, and the product was extracted with ethyl acetate. The organic layer was washed with an aqueous solution of sodium chloride, dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was subjected to chromatography on a silica gel (120 g) column (eluent; ethyl acetate:hexane=1:1˜1:0) to afford the title compound (4.00 g, 70% yield) as a colorless amorphous solid.

Provenance & Evidence