作者:Ralph A. Raphael、Paul Ravenscroft
DOI:10.1039/p19880001823
日期:——
Oxindoles (Indolin-2-ones) containing the functionality of the first two rings of the mitomycin A structure have been synthesized. Attempts to employ the oxindole grouping to construct the third ring were unsuccessful because of the resistance of the oxindole group or its derivatives towards nucleophilic attack. An unusual methylation of 3-methyl-5-nitrobenzene-1,2,4-triol to give the (E)-3,6-dihydroxy-2-methyl-1
合成了含有丝裂霉素A结构的前两个环的官能团的羟吲哚(吲哚-2-酮)。由于羟吲哚基团或其衍生物对亲核攻击具有抗性,尝试使用羟吲哚基团构建第三个环的尝试未成功。注意到3-甲基-5-硝基苯-1,2,4-三醇的不寻常的甲基化,得到(E)-3,6-二羟基-2-甲基-1,4-苯醌4-甲氧基亚胺N-氧化物。描述了新颖的吲哚形成。