Abstract:
The present application describes processes for the synthesis of morphinane and morphinone compounds, useful as pharmaceutical agents. Also included are novel intermediates useful in the preparation of these compounds. The process comprises quaternization of oripavine to provide a mixture of the R- and S-isomeric (at the nitrogen) quaternary salts. The R-isomer is readily isolated and converted to various N-(R)-morphinane and N-(S)-morphinone compounds. The R-isomer, S-isomer or a mixture of R- and S-isomers may be demethylated and converted to various morphinane and morphinone compounds.
Abstract:
8-Substituted-2,6-methano-3-benzazocines of general structure are useful as analgesics, anti-diarrheal agents, anticonvulsants, antitussives and anti-addiction medications.
Abstract:
The present invention relates to the delivery of drug amines through an inhalation route. Specifically, it relates to aerosols containing drug amines that are used in inhalation therapy. In one aspect of the present invention, a method of delivering an amine drug in an aerosol form is provided. The method comprises: a) heating a coating, which includes an amine drug salt on a substrate contained in a device to a temperature sufficient to volatilize the amine drug from the coating, h) by said heating, forming an amine drug vapor, and c) during said heating, drawing air through said device, condensing said vapor to form aerosol particles containing less than 10% degradation products of the compound.
Abstract:
Compounds of formula (I) in which X, Y, R1, R2, n, R3 and R4 have the meanings given in the specification, are useful as pro-drugs of peripheral phenolic opioid antagonists.
Abstract:
The present invention provides processes for the synthesis of opiate alkaloids. In particular, the opiate alkaloids produced by the process of the invention are typically intermediate compounds that may be utilized to produce a variety of biologically active alkaloids including buprenorphine and diprenorphine.
Abstract:
Disclosed herein are novel buprenorphine monocarboxylic ester derivatives and dibuprenorphine dicarboxylic ester derivatives which exert a longer analgesic effect as compared to buprenorphine hydrochloride. Also disclosed are the processes for synthesizing the novel ester derivatives of buprenorphine, and long-acting analgesic pharmaceutical compositions containing a compound selected from buprenorphine base and the novel ester derivatives of buprenorphine.
Abstract:
The present invention provides compound having the structure: and pharmaceutically acceptable salts or derivatives thereof, as well as compositions including such compounds. The invention also provides methods of (1) preventing pain, (2) treating pain, (3) inducing sedation, (4) treating opiate addiction, (5) treating opiate withdrawal (abstinence syndrome) and/or (6) treating cough in a patient in need thereof by administering a compound or composition of the invention. 1
Abstract:
Pharmaceutical compositions containing as an active ingredient a compound of the formula ##SPC1##WhereinR.sub.1 is hydrogen, methyl or acetyl,R.sub.2 is hydrogen or methyl,R.sub.3 is hydrogen, methyl, n-propyl, phenethyl, or phenyl,R.sub.4 is hydrogen or methyl, andZ is --CH=CH-- or --CH.sub.2 --CH.sub.2 --,or a non-toxic, pharmacologically acceptable acid addition salt thereof; and a method of using the same as analgesics and antitussives.
Abstract:
Compounds of the formula ##SPC1##WhereinR.sub.1 is hydrogen, methyl or acetyl,R.sub.2 is hydrogen or methyl,R.sub.3 is hydrogen, methyl, n-propyl, phenethyl or phenyl,R.sub.4 is hydrogen or methyl,Z is --CH=CH-- or --CH.sub.2 --CH.sub.2 --, andY is oxygen or sulfur,And non-toxic, pharmacologically acceptable acid addition salts thereof; the compounds as well as their salts are useful as analgesics and antitussives.