Novel water-soluble C-ring analogues of 20(s)-camptothecin having general formula (1). All the compounds of formula (1) are prepared from the compounds of general formula (2) having 20(s)-chiral carbon where R1 to R5 have the meaning given above. The compounds of formula (1) possess potent anti-cancer and anti-viral properties. The invention also provides an alternate process for the preparation of known C-5 substituted compounds of formula (1).
具有通式(1)的 20(s)-
喜树碱的新型
水溶性 C 环类似物。所有的式(1)化合物均由具有 20(s)-手性碳的通式(2)化合物制备而成,其中 R1 至 R5 具有上述含义。式(1)化合物具有强效的抗癌和抗病毒特性。本发明还提供了制备已知 C-5 取代的式 (1) 化合物的另一种工艺。