申请人:Metabasis Therapeutics, Inc.
公开号:US06752981B1
公开(公告)日:2004-06-22
The present invention is directed towards novel cyclic phosph(oramid)ate prodrugs of alcohol, amine-, and thiol-containing drugs, their preparation, their synthetic intermediates, and their uses. Another aspect of the invention is the use of the prodrugs to treat diseases that benefit from enhanced drug distribution to the liver and like tissues and cells that express cytochrome P450, including hepatitis, cancer, liver fibrosis, malaria, other viral and parasitic infections, and metabolic diseases where the liver responsible for the overproduction of the biochemical end product, e.g. glucose (diabetes); cholesterol, fatty acids and triglycerides (hyperlipidemia) (atherosclerosis) (obesity). In one apsect, the invention is directed towards the use of the prodrugs to enhance oral drug delivery. In another aspect, the prodrugs are used to prolong pharmacodynamic half-life of the drug. In addition, the prodrug methodology of the current invention is used to achieve sustained delivery of the parent drug. In another aspect, the prodrugs are used to increase the therapeutic index of the drug. In another aspect of the invention, a method of making these prodrugs is described. In another aspect, the prodrugs are also useful in the delivery of diagnostic imaging agents to the liver.
本发明涉及醇、胺和硫醇含有药物的新型环状磷(酰胺)酸酯前药、其制备、合成中间体和用途。本发明的另一个方面是利用这些前药治疗需要增强药物在肝脏和类似组织和细胞中的分布的疾病,包括肝炎、癌症、肝纤维化、疟疾、其他病毒和寄生虫感染以及肝脏负责生化终产物过度产生的代谢性疾病,例如葡萄糖(糖尿病)、胆固醇、脂肪酸和三酰甘油(高脂血症)(动脉粥样硬化)(肥胖症)。在一个方面,本发明是针对使用前药增强口服药物输送的。在另一个方面,前药被用于延长药物的药效半衰期。此外,本发明的前药方法用于实现母体药物的持续释放。在另一个方面,前药被用于增加药物的治疗指数。在本发明的另一方面,描述了制备这些前药的方法。在另一个方面,这些前药也有助于将诊断成像剂输送到肝脏。