摘要:
Provided are compounds of the formula: R1; R2, R3; R4; A; X; Y and Z are defined in the present disclosure; pharmaceutically acceptable salts thereof, deuterium forms thereof, isomers thereof, and mixture thereof; and processes for their preparation. The compounds can be used for treating a patient suffering from a condition that is capable of treatment with an agonist and/or antagonist of the opioid receptors and are especially useful a patient suffering from pain, treating a patient in need of an immunosuppressant to prevent rejection in organ transplant and skin graft, in need of an anti-allergic agent, in need of an anti-inflammatory agent, in need of a brain cell protectant, for drug and/or alcohol abuse, to decrease gastric secretion, for diarrhea, for cardiovascular disease, for a respiratory disease, in need of a cough and/or respiratory depressant, for mental illness, for epileptic seizures and other neurologic disorders.
摘要:
A method of providing a patient with controlled release of ketone-containing opioid using a prodrug capable, upon enzymatic activation and intramolecular cyclization, of releasing the ketone-containing opioid is disclosed. The disclosure also provides such prodrug compounds and pharmaceutical compositions comprising such compounds. Such pharmaceutical compositions can optionally include an enzyme inhibitor that interacts with the enzyme(s) to mediate the enzymatically-controlled release of the ketone-containing opioid from the prodrug so as to modify enzymatic cleavage of the prodrug. Also included are methods to use such compounds and pharmaceutical compositions.
摘要:
The oxazolidine derived from the reaction of oxymorphone with the Burgess reagent, temporariiy protected at 0-3 and C-6, reacts with Grignard or other suitable metallic or organometallic reagents to directly provide, for example, A/-allyl, A/-methylcyclopropyl and /V-methylcyclobutyl derivatives that are further converted into naltrexone, naloxone, nalbuphone and nalbuphine in excellent yields. These morphine analogs can be prepared from the oxazolidine in a one- pot synthesis.
摘要:
The present invention relates to an improved process for recovery of nalmefene hydrochloride [17-(cyclopropylmethyl)-4,5-alpha-epoxy-6-methylenemorphinan-3,14-diol hydrochloride] from an aqueous composition containing nalmefene and certain impurities.
摘要:
A high-yielding method for the N-demethylation of oxycodone- and oxymorphone-N-oxides by the reaction of these compounds with cyclodehydration reagents has been performed. This method has been utilized to improve the synthesis of various morphine analogs, such as naltrexone, nalbuphone and naloxone.