The present invention provides synthetic methodology to produce novel dipeptide compounds and pharmaceutically acceptable salts thereof which exhibit excellent HIV protease inhibitory activity and excellent bioavailability from digestive tracts. Methods of using the dipeptide compounds and pharmaceutically acceptable salts thereof also are provided. A non-limiting example of a dipeptide compound of the invention has the general formula (IA):
where R1 represents a 5-membered or 6-membered monocyclic hydrocarbon group or heterocyclic group wherein 3 or fewer substituents other than hydrogen are present on the cyclic group; R21 and R22 each represents a hydrogen atom or a linear or branched aliphatic hydrocarbon group having 1-6 carbon atoms; and R3 represents a linear or branched aliphatic hydrocarbon group having 1-6 carbon atoms or a monovalent group comprising an aromatic monocyclic hydrocarbon group having 12 or fewer carbon atoms in total, wherein a halogen atom can be substituted on the aromatic ring of the aromatic monocyclic hydrocarbon group.
本发明提供了一种合成方法,用于生产新型二肽化合物及其在消化道中表现出优异的HIV
蛋白酶抑制活性和优异的
生物利用度的药用可接受盐。还提供了使用这些二肽化合物和药用可接受盐的方法。本发明的二肽化合物的非限制性实例具有通式(IA):其中R1代表一个5-或6-成员单环碳氢化合物基团或杂环基团,在环状基团上除氢外存在3个或更少的取代基;R21和
R22各代表氢原子或具有1-6个碳原子的线性或支链脂肪碳氢基团;R3代表具有1-6个碳原子的线性或支链脂肪碳氢基团或包括总共有12个或更少碳原子的芳香单环碳氢基团的一价基团,在芳香单环碳氢基团的芳香环上可以取代卤素原子。