A solid phase synthesis has been developed leading up to unsymmetrical HIV-1 protease inhibitors that are not readily available by conventional solution phase chemistry (18ag). To prepare these compounds the hydroxyl group of (1S,2R)-()-cis-1-phthalimido-2-indanol (3) was coupled to a Merrifield resin via a dihydropyrane linker. Cleavage of the phthalimido protecting group and reaction of the liberated amine with the bis-activated symmetrical diacid 15 resulted in the resin bound amide 16. Coupling of 16 with amino acids and amines followed by hydrolysis produced the desired unsymmetrical products 18ag from which potent HIV-1 protease inhibitors were identified, e.g., 18e (ki = 0.1 nM), 18a (ki = 0.2 nM) and 18c (ki = 2 nM).Key words: HIV, inhibitor, protease, solid phase.
已开发出一种固相合成方法,可制备非对称HIV-1蛋白酶抑制剂,这些抑制剂通过传统的溶液相化学方法(18a-g)难以获得。为制备这些化合物,将(1S,2R)-(-)-顺式-1-邻苯二甲酰亚胺基-2-吲哚醇(3)的羟基与Merrifield树脂通过二氢吡喃链偶联。裂解邻苯二甲酰亚胺保护基,并使释放的胺与双活化对称二酸15反应,得到树脂结合的酰胺16。将16与氨基酸和胺类物质偶联,随后水解产生所需的非对称产物18a-g,从中鉴定出有效的HIV-1蛋白酶抑制剂,例如18e(ki = 0.1 nM)、18a(ki = 0.2 nM)和18c(ki = 2 nM)。关键词:HIV、抑制剂、蛋白酶、固相。