Phenylacetohydroxamic acids having the formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of each other, represent hydrogen, chlorine, fluorine or bromine atoms or an alkyl or alkoxy group having at most 6 carbon atoms, and wherein R.sub.2 may additionally represent a trifluoromethyl group with the proviso that R.sub.1, R.sub.2 and R.sub.3 may not simultaneously represent hydrogen atoms and their pharmaceutically acceptable salts with bases, which compounds inhibit plateletaggregation and exhibit valuable pharmacological, in particular, antiphlogistic, analgesic and antipyretic activity.
[EN] SYSTEM AND METHOD FOR BIPHASIC TRANSDERMAL IONTOPHORETIC DELIVERY OF DICLOPHENAC AND OTHER THERAPEUTIC AGENTS<br/>[FR] SYSTÈME ET MÉTHODE D'ADMINISTRATION IONTOPHORÉTIQUE TRANSDERMIQUE BIPHASIQUE DE DICLOFÉNAC ET D'AUTRES AGENTS THÉRAPEUTIQUES
申请人:INCUBE LABS LLC
公开号:WO2020037294A1
公开(公告)日:2020-02-20
Various embodiments provide methods and systems for the iontophoretic transdermal delivery of therapeutic agents including NSAIDs e.g., diclophenac, to a target tissue site (TTS), using at least one electrode assembly that is positioned to be in electrical communication with a patient's skin above the TTS. In embodiments, a dose of agent is passively delivered from an assembly to the TTS during a first period, using a first current having a characteristic e.g., polarity and/or magnitude, that repels the agent out of the assembly. During a second period, a second current having a characteristic to attract the agent is used to retain the agent in the assembly such that delivery of agent into skin is minimized. Embodiments are particularly useful for delivery of agents which cause adverse effects from unwanted passive diffusion.
Synthesis, Structure, and Activity of Diclofenac Analogues as Transthyretin Amyloid Fibril Formation Inhibitors
作者:Vibha B. Oza、Craig Smith、Prakash Raman、Edward K. Koepf、Hilal A. Lashuel、H. Mike Petrassi、Kyle P. Chiang、Evan T. Powers、James Sachettinni、Jeffery W. Kelly
DOI:10.1021/jm010257n
日期:2002.1.1
Twelve analogues of diclofenac (1), a nonsteroidal antiinflammatory drug and known inhibitor of transthyretin (TTR) amyloid formation, were prepared and evaluated as TTR amyloid formation inhibitors. High activity was exhibited by five of the compounds. Structure-activity relationships reveal that a carboxylic acid is required for activity, but changes in its position as well as the positions of other