Trifluoroacetic acid methylene chloride → N-[5-benzyl-6-(2-phenylethynyl)pyridin-2-yl]-2-(methylamino)-propan-amide

Participants

Reaction Steps

A mixture of tert-butyl-N-[1-[[5-benzyl-6-(2-phenylethynyl)pyridin-2-yl]amino]-1-oxopropan-2-yl]-N-methylcarbamate E2d (26 mg, 0.6 mmol) and DCM:TFA (9:1, 2 ml) is stirred at RT for 90 minutes. The mixture is diluted with DCM and extracted with a saturated aqueous solution of NaHCO3. The combined organic layers are dried over MgSO4 and concentrated in vacuo. The product is purified by RP HPLC. Yield: 4 mg (20%). HPLC-MS: M+H=370; tR=2.16 min (*Method—1).

Provenance & Evidence