Ethyl Acetate → (5-chloro-1-(4-fluorobutyl)-1H-pyrrolo[2,3-c]pyridin-2-yl)methanol

Participants

Reaction Conditions

Reaction Steps

To a solution of ethyl 5-chloro-1-(4-fluorobutyl)-1H-pyrrolo[2,3-c]pyridine-2-carboxylate 10-c (2.19 g, 7.3 mmoles) in THF (150 mL) was added lithium aluminium hydride (8.064 mL, 1.1 eq, 1M in THF) at −75° C. under a nitrogen atmosphere. The reaction was allowed to stir on the cooling bath for two hours while it was slowly warming up until 0° C. Then the mixture was cooled on an ice ethanol bath and carefully decomposed by adding 150 mL ethylacetate followed by 10 g of Na2SO4.10H2O. The mixture was stirred for one hour and then dried over MgSO4, filtered off and the filtrate was evaporated. The residue was purified over silica with dichloromethane/methanol 95/5 as eluent to give 550 mg (30% yield) of the targeted compound 10. m/z=257 (M+H)+.

Provenance & Evidence