Hydrochloric Acid → HCID 178432425, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 1-bromo-1-{4-phenyl-5-[1-(tetrahydro-2H-pyran-2-yl)-1H-1,2,4-triazol-3-yl]-1,3-thiazol-2-yl}acetone (1.15 g, 2.5 mmol) obtained by similar manner with Example 116-B(vi) in THF (12.5 mL) and 2-propanol (12.5 mL), was added 2-amino-4-methylthiazole (1.43 g, 12.5 mmol), the mixture was stirred at 80° C. for 4 h. The reaction mixture was allowed to cool to 50° C., 2N hydrochloric acid (12.5 mL) was added, and the mixture was stirred for 12 h. The reaction mixture was allowed to cool to rt, and then neutralized by the addition of 2N aqueous sodium hydroxide solution (12.5 mL). The mixture was extracted with EtOAc (50 mL×2), and the combined organic layers were dried over anhydrous magnesium sulfate. Insoluble materials were removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (EtOAc/hexane=50/50→100/0; then MeOH/EtOAc=30/70) followed by silica gel column chromatography (EtOAc/hexane=30/70→100/0) to give the title compound (88 mg, 9%) as a yellow solid.

Provenance & Evidence