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US09120800B2 Process for the preparation of oxymorphone alkaloid and oxymorphone salts 有权
羟吗啡酮生物碱和羟吗啡酮盐的制备方法

Process for the preparation of oxymorphone alkaloid and oxymorphone salts
Abstract:
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.
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