2-Chloro-4-methylpyridine → HCID 52936010, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (2S,4R)-1-acetyl-6-[1-(2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}ethyl)-1H-1,2,3-triazol-4-yl]-2-methyl-1,2,3,4-tetrahydro-4-quinolinamine (for a preparation, see Intermediate 44) (115 mg, 0.268 mmol) and 2-chloro-4-methylpyridine (102 mg, 0.803 mmol) in toluene (2.5 mL) were successively added sodium tert-butoxide (129 mg, 1.338 mmol), tris(dibenzylideneacetone)dipalladium(0) (245 mg, 0.268 mmol) and 2′-(dicyclohexylphosphino)-N,N-dimethylbiphenyl-2-amine (DavePhos) (211 mg, 0.535 mmol). The resulting mixture was stirred at 100° C. for 1 h then cooled to room temperature. The insoluble material was washed with 5% MeOH in DCM. The combined filtrate and washings were concentrated in vacuo and the residue was dissolved in a 1:1 MeOH/DMSO mixture and purified via MDAP (modifier; formic acid). The appropriate fractions were combined and the solvents evaporated using a blow down apparatus to give 2-(4-{(2S,4R)-1-acetyl-2-methyl-4-[(4-methyl-2-pyridinyl)amino]-1,2,3,4-tetrahydro-6-quinolinyl}-1H-1,2,3-triazol-1-yl)ethanol (18.5 mg, 0.046 mmol, 17%) as a colourless oil.

Provenance & Evidence