Cesium carbonate → HCID 67343530, compound

Participants

Reaction Steps

Methyl 3-cyclohexyl-2-[4-hydroxy-2-(methoxymethoxy)phenyl]-1H-indole-6-carboxylate was dissolved in DMF (0.17 M) and Cs2CO3 (1.05 eq) was added. The mixture was stirred for 20 min, then 2-bromomethylpyridine (1.05 eq) was added and the suspension was stirred at RT. After 4 h Cs2CO3 (0.3 eq) was added and the mixture was stirred overnight. Since the reaction was incomplete the mixture was warmed for 30 min to 35° C. The mixture was diluted with EtOAc and extracted with 1N aqueous HCl, sat. aq. NaHCO3 and brine. After drying over Na2SO4 all volatiles were evaporated in vacuo. The product was obtained as a beige amorphous solid (89%). (ES+) m/z 501 (M+H)+.

Provenance & Evidence