反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a solution of cis-N-isopropyl-4-(2-nitro-5-(1H-1,2,4-triazol-1-yl)phenylamino)-cyclohexanecarboxamide (100 mg, 0.269 mmol) in EtOH (3 mL) was added tin(II) chloride dihydrate (242 mg, 1.074 mmol). The reaction was stirred at 80° C. After 3 hours, another four equivalents of tin(II) chloride dihydrate (242 mg, 1.074 mmol) was added, and the reaction was stirred at 80° C. for an additional 3 hours, and then at RT overnight. The reaction mixture was concentrated, and the residue was partitioned between EtOAc and 1 N aqueous sodium hydroxide. The aqueous layer was extracted with EtOAc; the combined organic layers were dried over anhydrous magnesium sulfate, filtered, and concentrated. The diamine was dissolved in THF (3 mL), cooled to 0° C., and 4-fluorobenzoyl isothiocyanate (53.5 mg, 0.296 mmol) was added. The reaction was stirred at 0° C. for 30 minutes, then DIPEA (0.070 mL, 0.403 mmol) and EDC (77 mg, 0.403 mmol) were added, and the reaction was stirred for 1 hour at 60° C. The residual material was concentrated, adsorbed onto a plug of silica gel, and purified by column chromatography, eluting with 20-100% EtOAc in DCM, to provide (E)-4-fluoro-N-(1-(cis-4-(isopropylcarbamoyl)cyclohexyl)-6-(1H-1,2,4-triazol-1-yl)-1H-benzo[d]imidazol-2(3H)-ylidene)benzamide as an off-white powder (44 mg, 33.5% yield). MS, m/z (C26H28FN7O2): Calc'd, 489.2. found, 489.9 [M+H].
the reaction was stirred at 80° C. for an additional 3 hours
at RT
overnight
The reaction mixture was concentrated
the residue was partitioned between EtOAc and 1 N aqueous sodium hydroxide
The aqueous layer was extracted with EtOAc
the combined organic layers were dried over anhydrous magnesium sulfate
filtered
concentrated
The diamine was dissolved in THF (3 mL)
cooled to 0° C.
The reaction was stirred at 0° C. for 30 minutes
the reaction was stirred for 1 hour at 60° C
The residual material was concentrated
purified by column chromatography
eluting with 20-100% EtOAc in DCM
来源 ID: ord-060955deecd848269f06dda50457e043