Pyridine → HCID 86679033, compound

Participants

Reaction Steps

285 mg (1 mmol) of (S)-2-(benzyloxycarbonylamino)-3-phenyl-1-propanol, 223 mg (1 mmol) of 3-amino-5-chloro-2-hydroxybenzenesulfonic acid and 100 mg (0.33 mmol) of triphosgene were suspended in 3 ml of methylene chloride, to which 0.7 ml of pyridine was dropwisely added. Following agitation at room temperature overnight, the solvent was distilled away, and the resultant was purified using purification step A to obtain a crude purified substance of the title compound in protected form. To the obtained crude purified substance, 2 ml of 48% hydrogen bromide-acetic acid solution was added, and the resultant was stirred at room temperature for 2 hours. The solvent was distilled away and water and acetonitrile were added to the obtained residue for deposition. The deposited solid substance was filtrated to obtain the title compound.

Provenance & Evidence