Drug derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drug derivatized with a weak-base moiety that facilitates active loading of the drug through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drug to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drug derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drugs.
本文提供了适用于装载到脂质体纳米粒子载体中的药物衍
生物。在一些优选方面中,这些衍
生物包括一种
水溶性差的药物,经过衍生化处理后,衍
生物中含有一个弱碱性基团,该基团有助于通过LN跨膜pH或离子梯度将药物主动装载到LN的
水相内部中。弱碱性基团可以选择性地包括一个亲脂性域,该域有助于将药物主动装载到脂质体膜的内单层中。有利的是,药物衍
生物的LN配方相对于相应的自由药物表现出改善的溶解度、降低的毒性、增强的疗效和/或其他优点。