Hydrazine hydrate (1:1) → tert-butyl 4-(3-amino-1-(4-chlorophenyl)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate

関与物質

反応手順

Hydrazine monohydrate (10.32 μL) was added to a stirred suspension of tert-butyl 4-(1-(4-chlorophenyl)-3-(1,3-dioxoisoindolin-2-yl)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (Intermediate 37) (14 mg) in ethanol (1.0 mL) under argon. The resulting suspension was stirred at room temperature for 3 days. The mixture was filtered and was purified by preparative HPLC using a Waters X-Bridge reverse-phase column (C-18, 5 microns silica, 19 mm diameter, 100 mm length) and decreasingly polar mixtures of water (containing 0.2% ammonium carbonate) and acetonitrile as eluent. Pure fractions were evaporated to dryness to afford tert-butyl 4-(3-amino-1-(4-chlorophenyl)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate as a white powder (5.00 mg, 44.5%).

情報源と証拠