摘要:
The present invention relates to compounds and their uses, in particular, compounds in the form of prodrugs that pro mote transport of a pharmaceutical agent to the lymphatic system and subsequently enhance release of the parent drug.
摘要:
The invention relates to an improved method of preparing buprenorphine, a salt thereof, analogs of buprenorphine and their salts. In particular, the invention relates to a method of preparing buprenorphine and related products and salts in economic and ecologic ways having increased yields.
摘要:
The invention provides a method of treating drug and alcohol abuse, depression, anxiety, or a compulsive disorder in a subject comprising administering to the subject a compound having the formula: or a pharmaceutically acceptable salt or solvate thereof, wherein R, R1, R2, R3, R4, R5, and X are as defined in the specification.
摘要:
The present invention is directed to a process for the preparation of opioid compounds such as buprenorphine, naltrexone, naloxone, nalbuphone, nalbuphine, and the like.
摘要:
The present invention provides a process for the preparation of a compound of formula (VI), or a salt or derivative thereof, wherein R1 and R2 are independently C1-8 alkyl and * represents a stereocentre.
摘要:
The invention provides orvinol and thevinol compounds useful for the treatment of drug and alcohol abuse, the compounds being particularly useful for the prevention of relapse in recovering addicts.
摘要:
The present disclosure provides improved methods for N-dealkylation of tertiary amines, including methods for N-demethylation of alkaloids and opioids, in which the dealkylation reaction is carried out in a solvent comprising a tertiary alcohol. The present disclosure also provides improved processes for preparing semi-synthetic opioids that incorporate the disclosed methods for N-dealkylation of tertiary amines.
摘要:
There is provided an efficient industrial process for the preparation of 21-cyclopropyl-7α-(2-hydroxy-3,3-dimethyl-2-butyl)-6,14-endo-ethano-6,7,8,14-tetrahydro-oripavine, i.e. buprenorphine of Formula-I in high yield and purity, with enhanced safety and eco-friendly norms. The invention further relates to an improved process for preparation of intermediates thereof in high yield and purity.
摘要:
The present invention relates to an improved process for preparing morphinane analogues of formula 1 wherein the substituents R1, R2, R2a, R3, R4, R5 and Y have the meanings as defined in the specifications.
摘要:
The present invention provides processes for the production of opiate alkaloids. In particular, the present invention provides processes for increasing the yield of opiate alkaloids by introducing at least one recycling step.