作者:Bart Kesteleyn、Norbert De Kimpe
DOI:10.1021/jo990767d
日期:2000.2.1
regioselective introduction of a chloromethyl group at C-6 and a methoxycarbonylmethyl group at C-5 and subsequent reaction of the intermediate methyl (o-(chloromethyl)phenyl)acetate derivative 16 with methylamine. Oxidation of the 5,7,8-trimethoxy-2,6-dimethyl-1, 4-dihydroisoquinoline-3(2H)-one 17 thus obtained, using cerium(IV) ammonium nitrate as a selective oxidizing agent, gave mimosamycin (1) in good overall
通过在C-6处氯甲基和C-5处甲氧基羰基甲基的区域选择性引入,由八步合成Mimosamycin(1),由2-甲氧基-3-甲基-1,4-苯醌合成总收率为13%。中间体(邻-(氯甲基)苯基)乙酸甲酯衍生物16与甲胺的随后反应。使用硝酸铈(IV)铵作为选择氧化剂,氧化得到的5,7,8-三甲氧基-2,6-二甲基-1,4-二氢异喹啉-3(2H)-one 17,得到咪莫霉素(1 )的整体产量。