Hydrochloric Acid → 1-((2S,4R)-4-amino-2-methyl-6-(5-(morpholine-4-carbonyl)pyridin-2-yl)-3,4-dihydroquinolin-1(2H)-yl)ethanone hydrochloride

Participants

Reaction Steps

4M hydrochloric acid in 1,4-dioxane (10.11 ml, 40.4 mmol) was added to tert-butyl ((2S,4R)-1-acetyl-2-methyl-6-(5-(morpholine-4-carbonyl)pyridin-2-yl)-1,2,3,4-tetrahydroquinolin-4-yl)carbamate (for a preparation, see Intermediate 64) (2 g, 4.04 mmol) at room temperature, followed by MeOH (10 mL) and DCM (10 mL) and the mixture stirred at room temperature for 2 mins. The mixture was concentrated in vacuo to give 1-((2S,4R)-4-amino-2-methyl-6-(5-(morpholine-4-carbonyl)pyridin-2-yl)-3,4-dihydroquinolin-1(2H)-yl)ethanone hydrochloride (1.60 g, 3.71 mmol, 92% yield).

Provenance & Evidence