反应详情

To a solution of 2-(1-tert-butoxycarbonyl-1H-thieno[3,2-c]pyrazol-3-yl)-5-formyl-indole-1-carboxylic acid tert-butyl ester [100 mg, 0.214 mmol, Intermediate (11)] in anhydrous tetrahydrofuran (5 mL) is added phenylmagnesium bromide (1M in tetrahydrofuran, 1 mL) at −78° C. The resulting reaction mixture is stirred at the same temperature for 1 h then quenched it by the addition of water at 0° C. (4 mL). The reaction mixture is extracted three times with ethyl acetate (30 mL). Combined ethyl acetate phases are washed with brine, dried over sodium sulfate and filtered. Evaporation of the solvent in vacuo yielded 2-(1-tert-butoxycarbonyl-1H-thieno[3,2-c]pyrazol-3-yl)-5-(hydroxy-phenyl-methyl)-indole-1-carboxylic acid tert-butyl ester [99 mg, 85%, Intermediate (12)] as a white foam; LC/MS: (M+H, 546).

1. customThe resulting reaction mixture
2. customthen quenched it
3. additionby the addition of water at 0° C. (4 mL)
4. extractionThe reaction mixture is extracted three times with ethyl acetate (30 mL)
5. washCombined ethyl acetate phases are washed with brine
6. dry with materialdried over sodium sulfate
7. filtrationfiltered
8. customEvaporation of the solvent in vacuo