Johnson Matthey Public Limited Company

Jen-Sen Dung

Chester Sapino

Bogdan Mudryk

Erno M Keskeny

James Joseph Mencel

Alice Sebastian

Michael Lawrence Casner

James Guro

Jin Luo

James J Mencel

A method of preparing oxycodone includes forming 14-hydroxycodeine by reduction of 14-hydroxycodeinone and rearrangement of the 14-hydroxycodeine to form the oxycodone. During the reduction step, the ketone group of an undesirable contaminant precursor, 8,14-dihydroxy-7,8-dihydrocodeinone, is reduced to a hydroxyl group thus forming a triol. This triol is substantially inert with respect to reforming 14-hydroxycodeinone and can be readily separated from oxycodone.

Low ABUK oxycodone, its salts and methods of making same

Improved analgesic oxymorphone hydrochloride contains less than 10 ppm of alpha, beta unsaturated ketones and pharmaceutical preparations comprising such oxymorphone hydrochloride. The oxymorphone hydrochloride is produced by reducing a starting material oxymorphone hydrochloride using gaseous hydrogen and under specified acidity, solvent system and temperature conditions. A specific polymorph of oxymorphone hydrochloride may be obtained by hydration.

Method for making analgesics

A process for preparing oxycodone or an oxycodone salt, wherein the oxycodone or oxycodone salt has low levels of impurities (especially 14-hydroxycodeinone) is disclosed. The process comprises the steps of:

Preparation of oxycodone

A process for the preparation of thebaine, its salts such as the bitartrate, and analogues thereof, together with a novel intermediate useful in said process are disclosed. Thebaine bitartrate is itself useful in the preparation of oxycodone; analogues are useful in the preparation of analogous 14-hydroxymorphinones.

Preparation of opiates, intermediates and uses of salts

A method for removing residual organic solvents from a bulk substance, for example from a pharmaceutical drug substance, comprises drying the bulk substance in the presence of water vapor, such that the residual organic solvent molecules are displaced with water vapor molecules.

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Boothwyn, PA, United States of America

Jen-Sen Dung