The present invention provides a process for preparing an oxymorphone acid adduct, said process comprising hydrogenating an aqueous solution of 14-hydroxymorphinone and an acid to form a solution of the oxymorphone acid adduct, wherein the hydrogenation is carried out at one or more temperatures greater than 40° C. in the presence of a hydrogenation catalyst and hydrogen gas, wherein the level of 6α-oxymorphol produced is ≦3.00 area % as determined by HPLC.
                            本发明提供了一种制备
氧吗啡酸加合物的方法,该方法包括将
14-羟基吗啡酮和酸的
水溶
液氢化,形成
氧吗啡酸加合物的溶液,其中氢化在存在氢化催化剂和
氢气的情况下在一个或多个大于40℃的温度下进行,其中6α-
氧吗啡醇的含量≤3.00%(面积百分比),由HPLC确定。