[EN] PRODRUGS OF NON- STEROID ANTI - INFLAMMATORY AGENTS (NSAIDS)<br/>[FR] PROMÉDICAMENTS D'AGENTS ANTI-INFLAMMATOIRES NON STÉROÏDIENS (AINS)
申请人:SELCH LARSEN CLAUS
公开号:WO2013064153A1
公开(公告)日:2013-05-10
The present invention relates to novel depot formulations (prodrugs) comprising an immobility promoting unit linked via an ester to an active pharmaceutical ingredient, i.a. common NSAIDs. The novel depot formulations are suitable for intra-articular injections and are soluble at slightly acidic pH to facilitate ease of injection, and sparingly soluble at physiological pH thereby precipitating at the site of administration. The precipitate will slowly dissolve and the active drug is released from dissolved depot formulation following esterase mediated cleavage of the ester link between the immobility promoting unit and the active pharmaceutical agent.
[EN] PRODRUGS OF NAPROXEN AND DICLOFENAC<br/>[FR] PROMÉDICAMENTS DE NAPROXÈNE ET DE DICLOFÉNAC
申请人:SELCH LARSEN CLAUS
公开号:WO2014177479A1
公开(公告)日:2014-11-06
The present invention relates to a compound of formula (I): wherein R1 is R3 -IPU and R2 is the acyloxy residue of diclofenac or naproxen, and specified by the following structures (A) wherein OH-R3 -IPU is selected from (B) and R4 and R5 may be the same or different selected from (C) and salts, solvates and hydrates thereof.
The present invention relates to a compound of formula (I): wherein R
1
is R
3
-IPU and R
2
is the acyloxy residue of diclofenac or naproxen, and specified by the following structures (A) wherein OH—R
3
-IPU is selected from (B) and R
4
and R
5
may be the same or different selected from (C) and salts, solvates and hydrates thereof.