Tetraethylammonium fluoride dihydrate → HCID 118036955, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-(trimethylsilyl)ethyl 4-((8-((5-cyano-4-((2-methoxyethyl)amino)pyridin-2-yl)carbamoyl)-2-(dimethoxymethyl)-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)methyl)-3-oxopiperazine-1-carboxylate (intermediate 122, 4.20 g, 5.29 mmol) and tetraethylammonium fluoride dihydrate (2.53 g, 13.22 mmol) in AcCN (50 ml) was heated for 30 minutes at 70° C. The reaction mixture was partitioned between saturated aqueous NaHCO3 solution and DCM, the DCM phase washed with brine, dried over MgSO4 and evaporated. The residue was applied to a RediSep® silica column and purified by normal phase chromatography, eluting with EtOAc then a gradient from DCM to 10% MeOH in DCM. Product containing fractions were combined and evaporated to give the title compound as a yellow-white solid. (UPLC-MS 7) tR 0.68; ESI-MS 539.5 [M+H]+.

Provenance & Evidence