申请人:Almarsson Orn
公开号:US20110178068A1
公开(公告)日:2011-07-21
The invention provides a method of sustained delivery of a tertiary amine-containing parent drug comprising administering to a patient an effective amount of a prodrug compound of the invention wherein upon administration to the patient, release of the parent drug from the prodrug is sustained release. Prodrug compounds suitable for use in the methods of the invention are labile quaternary ammonium salts of tertiary amine-containing parent drugs (or tertiary imine-containing parent drugs) that are derivatized through aldehyde-linked prodrug moieties that reduce the solubility of the prodrug compound at a reference pH as compared to the parent drug. The physical, chemical and solubility properties of these derivatives can be further modulated by the choice of counterion X
−
. In one embodiment, the present invention provides a prodrug compound of Formula I:
where R
1
-R
5
are defined in the written description of the invention. The prodrug compounds of the invention can be used to treat any condition for which the tertiary amine-containing parent drug or tertiary imine-containing parent drug is useful as a treatment.
本发明提供了一种持续释放三级胺含有的母药的方法,包括向患者施用本发明的前药化合物的有效量,其中在向患者施用时,母药从前药中的释放是持续释放的。适用于本发明方法的前药化合物是由醛基连接的前药基团衍生的,这些前药基团可以减少前药化合物在参考pH下的溶解度与母药相比。这些衍生物的物理、化学和溶解度特性可以通过选择阴离子X-来进一步调节。在一种实施方式中,本发明提供了式I的前药化合物:其中R1-R5在发明的书面描述中被定义。本发明的前药化合物可用于治疗任何需要使用三级胺含有的母药或三级亚胺含有的母药进行治疗的情况。