Thionyl Chloride → HCID 178494484, compound

Participants

Reaction Conditions

Reaction Steps

To a 0° C. cooled solution of (E)-4-fluoro-N-(6-(hydroxymethyl)-1-(cis-4-(isopropylcarbamoyl)cyclohexyl)-1H-benzo[d]imidazol-2(3H)-ylidene)benzamide (100 mg, 0.221 mmol) in DCM (2.5 mL) was added thionyl chloride (0.081 mL, 1.105 mmol) dropwise, and the reaction was stirred at 0° C. for 30 minutes. The solvent was removed and the residue was resuspended in ACN (2 mL), cooled to 0° C., and sodium methoxide (478 mg, 2.210 mmol) was added. The reaction was stirred overnight at RT. The solvent was removed on a rotovap, and the residue was partitioned between water and DCM. The aqueous layer was neutralized (pH approximately 8) with concentrated HCl and extracted with DCM. The combined organic layers were concentrated, adsorbed onto a plug of silica gel, and purified by column chromatography, eluting with 0-10% MeOH in DCM, to provide (E)-4-fluoro-N-(1-(cis-4-(isopropylcarbamoyl)cyclohexyl)-6-(methoxymethyl)-1H-benzo[d]imidazol-2(3H)-ylidene)benzamide as a white powder (45 mg, 43.6% yield). MS, m/z (C26H31FN4O3): calcd, 466.2. found, 466.8 [M+H].

Provenance & Evidence