作者:Wayne K. Anderson、Terri L. Boehm、Gergely M. Makara、R. Thomas Swann
DOI:10.1021/jm9501339
日期:1996.1.1
(E)-4-methyl-4-hexenoic acid side chain of mycophenolic acid, were used in the synthesis of monocyclic mycophenolic acid analogues 2a-i. The derivatives with a methyl group or hydrogen at C-4 and lacking the lactone moiety were much less cytotoxic than mycophenolic acid. The monocyclic analogues with a C-4 chloro group did show some activity, albeit much less than mycophenolic acid. The observed differences
为引入霉酚酸的(E)-4-甲基-4-己酸侧链而开发的两个逐步程序被用于合成单环霉酚酸类似物2a-i。与甲基酚酸相比,在C-4处具有甲基或氢且缺少内酯部分的衍生物的细胞毒性要小得多。具有C-4氯基的单环类似物确实显示了一定的活性,尽管比霉酚酸少得多。通过分子内氢键的半经验计算合理化了观察到的效价差异。