(polyalkoxy)sulfonate surface modifiers

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 65/326 (2006.01) C08G 65/334 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2591554

The present invention is directed to novel compounds, methods of manufacture and methods of use. The present invention is also directed to solid drug/active agent particles having one or more of the compounds of the present invention associated with the surface thereof. The compounds of the present invention are comprised of a non-polar polyether covalently linked to an anionic sulfonate group. The compounds have an amphipathic quality and preferably, are surface active. Such compounds are preferably useful as surface-active agents to coat and stabilize dispersions of particles in a continuous liquid medium. These surface-active agents may be applied in the stabilization of suspensions, emulsions, or liposome formulations intended for pharmaceutical, medical, cosmetic, or agricultural use. The particles that can be prepared by a variety of methods and will preferably comprise a pharmaceutical agent. Pharmaceutical compositions of the present invention can be used to treat amyriad of conditions and can be administered by many routes, including intravenous, intramuscular, subcutaneous, intrathecal, subdural, intracameral, intracerebral, intralesional, topical, oral, buccal, rectal, pulmonary, and nasal.

L'invention concerne des nouveaux composés, des procédés de production et d'utilisation associés. L'invention concerne également des particules de médicament/d'agent actif solides sur la surface desquelles sont associés un ou plusieurs desdits composés. Les composés de l'invention comprennent un polyéther non polaire lié par covalence à un groupe sulfonate anionique. Lesdits composés présentent une qualité amphipathique et sont de préférence tensioactifs. Lesdits composés sont de préférence utiles en tant qu'agents tensioactifs pour revêtir et stabiliser des dispersions de particules dans un milieu liquide continu. Ces agents tensioactifs peuvent être utilisés dans la stabilisation de suspensions, d'émulsions, ou de formulations de liposomes utilisées à des fins pharmaceutiques, médicales, cosmétiques, ou agricoles. Les particules de l'invention peuvent être préparées selon divers procédés et comprennent de préférence un agent pharmaceutique. Les compositions pharmaceutiques de l'invention peuvent être utilisées pour traiter plusieurs états et peuvent être administrées par des voies diverses, de type intraveineuse, intramusculaire, sous-cutanée, intrathécale, sous-durale, intracamérulaire, intracérébrale, intralésionnelle, topique, orale, buccale, rectale, pulmonaire, et nasale.

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