ethyl 3-(3-hydroxy-3-oxo-3,4-dihydro-quinazolin-2-ylcarbonylamino)-4-oxo-3,4-dihydroquinazoline-2-carboxylate 在
羟胺 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以93%的产率得到3-(3-hydroxy-4-oxo-3,4-dihydroquinazoline-2-carbonylamino)-4-oxo-3,4-dihydroquinazoline-2-carboxylic acid N-hydroxyamide