Synthetic methods are provided for preparation of oxycodone and salts thereof with an improved impurity profile. Thebaine is converted to 14-hydroxycodeinone sulfate intermediate to minimize a 7,8-dihydro-8,14-dihydroxycodeinone impurity. Efficient methods for conversion of oxycodone base to oxycodone hydrochloride are provided to minimize 14-hydroxycodeinone impurity in the final product.
本发明提供了制备
羟考酮及其盐类的合成方法,其杂质含量得到了改善。将
蒂巴因转化为
14-羟基可待因酮硫酸盐中间体,以最大限度地减少 7,8- 二氢-8,14-二羟基
可待因酮杂质。提供了将
羟考酮碱转化为
盐酸羟考酮的有效方法,以尽量减少最终产品中的 14-hydroxycodeinone 杂质。