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US 7,119,100 B2Granted
Oripavine derivatives and their uses as pharmaceuticals
AssigneesInstitute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China, Zhejiang Xianju Pharmaceuticals Co. Ltd.
InventorsBohua Zhong, Zehui Gong, Yaping Wang, Yongshao Liu
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Abstract
The present invention relates to oripavine derivatives of formula (I), wherein R1 is hydrogen or methyl, R2 is methyl, cyclopropyl methyl, cyclobutyl methyl or allyl, R3 is thiophenyl ethyl or cycloalkyl methyl where the cycloalkyl has 3 to 6 carbon atoms, or non-toxic pharmaceutically acceptable salts thereof. These compounds can be used for the preparation of analgesics or abstinence agents of opium habit-forming drugs.
Claims8
An oripavine compound represented by formula (I),
- wherein R1 is hydrogen or methyl, R2 is methyl, cyclopropyl methyl, cyclobutyl methyl or allyl, R3 is thiophenyl ethyl, or a non-toxic pharmaceutically acceptable salt thereof.
Dependencies are inferred from the claim text.