Sodium Hydroxide → HCID 86671991, compound

Participants

Reaction Steps

A solution of (±)-(E)-3-{1′-benzyl-3,4-dihydro-4-oxo-spiro[2H-(1,3)-benzoxazine-2,3′-piperidin]-6-yl}-acrylic acid methyl ester (240 mg, 0.61 mmol) in water (5 ml) and dioxane (10 ml) was treated with 1 M NaOH (0.80 ml) as described in Example 30, Step A, to give (±)-(E)-3-{1′-benzyl-3,4-dihydro-4-oxo-spiro[2H-(1,3)-benzoxazine-2,3′-piperidin]-6-yl}-acrylic acid (hydrochloride salt, 240 mg) as a brown oil.

Provenance & Evidence