The present invention concerns prodrugs of opioid analgesics and pharmaceutical compositions containing such prodrugs. Methods for providing more consistent pain relief by increasing the bioavailability of the opioid analgesic with the aforementioned prodrugs are provided. The invention also provides for decreasing the adverse GI side effects of opioid analgesics.
[EN] ALIPHATIC COMPOUNDS AS FRAGRANTS WITH MUSK CHARACTERISTICS<br/>[FR] COMPOSES ALIPHATIQUES UTILISES COMME AGENTS ODORANTS POSSEDANT DES CARACTERISTIQUES MUSQUEES
申请人:GIVAUDAN SA
公开号:WO2004050595A1
公开(公告)日:2004-06-17
This invention relates to aliphatic carbonyl compounds of formula I wherein, their manufacture and their use in fragrance compositions.[insert formula I here]R1 to R4, X and Y have the meaning as described in the specification
Aliphatic compounds as fragrants with musk characteristics
申请人:Kraft Philip
公开号:US20060052277A1
公开(公告)日:2006-03-09
This invention relates to aliphatic carbonyl compounds of formula I wherein, their manufacture and their use in fragrance compositions. R1 to R4, X and Y have the meaning as described in the specification
A method for producing cyclopentadienes which comprises the step of cyclodehydration of an unsaturated carbonyl compound having a specific chemical structures in a vapor phase in the presence of a specific solid acid catalyst. The cyclopentadienes of the invention can be produced in a high yield from inexpensive starting materials through a simplified reaction process and are useful as intermediate compounds for organic synthesis.