氨基用BOC保护后,想脱点BOC,现在文献上有两种方法:(1)用三氟乙酸脱,但三氟乙酸不好买(2)用HCI/二氧六环脱保护,这种方法是将盐酸溶于二氧六环,还是将氯化氢溶于二氧六环?文献上这样写的:上步产物was dissolved at 0 °C (ice bath) in 4 N HCl dioxane solution (14 mL) and stirred for 2 h at 0 °C. Afterwards, the solvent was evaporated and the resultant solid was dried for 72 h in vacuum. T如果是将氯化氢溶于二氧六环,那么如何配制4 N HCl dioxane solution ?