3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-N-(1-nitroxy-4-amino-2,2,6,6-tetramethylpiperidin-4-yl)-chromane-2-carboxamide 在
盐酸 作用下,
以
甲醇 、
异丙醇 为溶剂,
反应 2.0h,
以83.9%的产率得到3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-N-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)-2H-chromene-2-carboxamide hydrochloride