Hydrazine hydrate (1:1) → HCID 86597693, compound

Participants

Reaction Steps

A solution of 65 mg (0.089 mmol) (S)-2-(3,5-bis-trifluoromethyl-phenyl)-N-[6-[2-(1,3-dioxo-1,3-dihydro-isoindol-2-ylmethyl)-pyrrolidin-1-yl]-4-(4-fluoro-2-methyl-phenyl)-pyridin-3-yl]-N-methyl-isobutyramide and 7.0 mg (0.14 mmol) hydrazine hydrate in 1 ml ethanol was stirred at room temperature over night. The reaction mixture was diluted with a 1 M aqueous sodium hydroxide solution and extracted with three portions of tert-butyl methyl ether. The combined organic extracts were dried over sodium sulphate and concentrated to give 55 mg of crude (S)-N-[6-(2-aminomethyl-pyrrolidin-1-yl)-4-(4-fluoro-2-methyl-phenyl)-pyridin-3-yl]-2-(3,5-bis-trifluoromethyl-phenyl)-N-methyl-isobutyramide. This material was dissolved in 2 ml dichloromethane, followed by the addition of 0.013 ml (0.092 mmol) triethylamine and 0.009 ml (0.09 mmol) acetic anhydride at 0° C. The cooling bath was removed 5 min. after completed addition, and stirring was continued at room temperature over night. The reaction mixture was diluted with a 0.5 M aqueous sodium hydroxide solution and extracted with three portions of tert-butyl methyl ether. The combined organic extracts were dried over sodium sulphate and concentrated. Flash chromatography gave 44 mg (77%) of the title compound as an off-white solid.

Provenance & Evidence