Imidazole → Methyl 3-cyclohexyl-2-(2-{[(triisopropylsilyl)oxy]methyl}phenyl)-1H-indole-6-carboxylate

Participants

Reaction Steps

To an ice-cooled solution of methyl 3-cyclohexyl-2-[2-(hydroxymethyl)phenyl]-1H-indole-6-carboxylate and imidazole (2 eq.) in DMF (0.4 M), chloro(triisopropyl)silane (2 eq.) was added dropwise. The mixture was stirred at RT for 7 h, diluted with EtOAc, washed with sat. aq. NH4Cl and brine. The organic phase was dried over Na2SO4 and evaporated in vacuo. The residual material was subjected to flash chromatography (PE:EtOAc, 6:1). After evaporation of the solvents the product was obtained as colourless oil (97%). MS (ES−): 519.7 (M−H+).

Provenance & Evidence