Synthesis of the farnesyl ether 2,3,5-trifluoro-6-hydroxy-4-[(E,E )-3,7,11-trimethyldodeca-2,6,10-trien-1-yloxy]nitrobenzene, and related compounds containing a substituted hydroxytrifluorophenyl residue: novel inhibitors of protein farnesyltransferase, geranylgeranyltransferase I and squalene synthase
作者:Jonathan H. Marriott、Amelia M. Moreno Barber、Ian R. Hardcastle、Martin G. Rowlands、Rachel M. Grimshaw、Stephen Neidle、Michael Jarman
DOI:10.1039/b007101n
日期:——
hydroxide ion into the 2,3,6-trifluoro-5-hydroxy-4-nitrophenyl farnesyl ether 3a and the geranyl ether 3b. Analogues containing a cyano (3c) or carbamoyl (3d) group in place of nitro or an epoxygeranyl (3e) group as the prenyl (3-methylbut-2-enyl) containing residue were similarly prepared. Those containing a sulfonic acid (35a, 35b) or a methyl sulfone (41) group were made by modifications of this approach
Pentafluoronitrobenzene转化通过两个连续的相转移催化的小号Ñ利用(Ar反应ë,ë)法呢醇或香叶醇,随后氢氧根离子进入2,3,6-三氟-5-羟基-4-硝基苯基基金合欢基醚3A和香叶基醚3b。类似地制备含有氰基(3c)或氨基甲酰基(3d)基团代替硝基或环氧香叶基(3e)基团作为含异戊烯基(3-甲基丁-2-烯基)的残基的类似物。含有磺酸(35a,35b)或甲基砜(41)基团是通过这种方法的修饰(包括使用保护基团)制成的。羧基类似物(27a,27b)的合成涉及将受保护的氟化邻羟基苯甲酸衍生物(25)与(E,E)-法呢基或香叶基溴化物进行烷基化。类似地经由化合物17a制备非氟化化合物18。光延反应在合成中使用15,的二羟基化类似物3B,和8,的非氟化类似物3A。硝基化合物3a和3b是法呢基转移酶和香叶基香叶基转移酶I,后者酶的香叶基羧基衍生物27b和角鲨烯合酶的法呢基磺酸衍生物35a的中度抑制剂。