Hydrazine hydrate (1:1) → N-((1S)-2-Amino-1-{[4-(8-bromoimidazo[1,2-a]pyridin-2-yl)phenyl]methyl}ethyl)-3-chloro-4-[(1-methylethyl)oxy]benzamide

Participants

Reaction Conditions

Reaction Steps

To a solution, of N-{(1S)-2-[4-(8-bromoimidazo[1,2-a]pyridin-2-yl)phenyl]-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-3-chloro-4-[(1-methylethyl)oxy]benzamide (1.5 mmol) in ethanol (10 mL) was added hydrazine monohydrate (7.6 mmol). The reaction stirred for 18 h at 50° C. upon which a white precipitate formed and filtered. The filtrate was concentrated in vacuo. The resultant light yellow solid was used directly in the next reaction without further purification. ESMS [M+H]+: 533.2

Provenance & Evidence