Hydrochloric Acid → HCID 51357826, compound

Participants

Reaction Steps

A solution of (±)-(E)-3-{1′-tert-butoxycarbonyl-3,4-dihydro-4-oxo-spiro[2H-(1,3)-benzoxazine-2,3′-piperidin]-6-yl}-N-(tetrahydro-pyran-2-yloxy)-acrylamide (360 mg, 0.74 mmol) in DCM (14 ml) was treated with 4 M HCl in dioxane (1.9 ml) as described in Example 30, STEP C to give (±)-(E)-3-{3,4-dihydro-4-oxo-spiro[2H-(1,3)-benzoxazine-2,3′-piperidin]-6-yl}-N-hydroxy-acrylamide (154 mg, hydrochloride salt) as a white solid.

Provenance & Evidence