HCID 118075703, compound → HCID 118076055, compound

Participants

Reaction Steps

Balloon pressured hydrogen gas was charged into a round bottom flask containing a suspension of (S)-tert-butyl 4-(1-acetyl-2-methyl-5-propoxy-1,2,3,4-tetrahydroquinolin-6-yl)-5,6-dihydropyridine-1(2H)-carboxylate (500 mg, 1.17 mmol) and 20% palladium hydroxide on carbon (30 mg, 0.21 mmol) in methanol (10 mL). The reaction was stirred under balloon pressure for 2 hours. The reaction was vented to nitrogen and filtered through a pad of Celite. The filtered solution was concentrated in vacuo and purified via column chromatography on silica gel (Biotage 25 g column, gradient elution with 20-40% ethyl acetate-hexane) to afford tert-butyl (S)-4-(1-acetyl-2-methyl-5-propoxy-1,2,3,4-tetrahydroquinolin-6-yl)piperidine-1-carboxylate (500 mg, 100%) as a colorless oil. MS (ESI, pos. ion) m/z 432 [M+H]+.

Provenance & Evidence