Hydrogen chloride-ethyl acetate → HCID 67519776, compound

Participants

Reaction Steps

4N hydrochloric acid-ethyl acetate solution (12.9 mL, 51.6 mmol) was added in a ethyl acetate (40 mL) solution of ethyl 3-(4-t-butoxycarbonylamino-tetrahydro-pyran-4-yl)-propionate (2.59 g, 8.6 mmol), which had been obtained in 4), in an ice bath. The reaction mixture was stirred at room temperature for 4 hours, and 4N hydrochloric acid-ethyl acetate solution (4.3 mL, 17.2 mmol) was added and the reaction mixture was further stirred at room temperature for 1 hour. The formed solid was filtered to give a colorless solid (BB05, 1.28 g).

Provenance & Evidence