Scheme 6. Hydrolysis of fused iminohydantoins to yield hydantoins. Conditions: a 2 M HCl : TFA (1 : 9), μW, 120 °C, 2 h; b 2 M HCl : MeOH (1 : 1), 70 °C, 44 h. CCDC deposition number for X-day data: 2g–h1993735.†.
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