反应详情

温度

75 °C

(S)-3-[3-(5-Bromo -2-dimethylcarbamoylsulfanyl-3-nitro-benzyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-hexanoic acid ethyl ester (70 mg, 0.11 mmol) is suspended in ethylacetate (0.5 mL)/ethanol (0.5 mL) and then tin chloride (133 mg, 0.6 mmol) is added. The resulting suspension is equipped with a reflux condenser and heated to 75° C. for 1 hour. Upon completion the reaction is cooled to room temperature and the solvents evaporated in vacuo. The resulting solid is taken up in ethyl acetate and the product is filtered. The solvent is evaporated in vacuo and the resulting solid is purified via prep reverse phase LC to give 33 mg (54%) of the title compound. LCMS (ESMS): m/z 519.7 (M+H+).

1. customThe resulting suspension is equipped with a reflux condenser
2. temperatureUpon completion the reaction is cooled to room temperature
3. customthe solvents evaporated in vacuo
4. filtrationthe product is filtered
5. customThe solvent is evaporated in vacuo
6. customthe resulting solid is purified via prep reverse phase LC