| Abstract
| - Mimosamycin (1) was synthesized in eight steps with an overall yield of 13% from 2-methoxy-3-methyl-1,4-benzoquinone by regioselective introduction of a chloromethyl group at C-6 and amethoxycarbonylmethyl 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) ammoniumnitrate as a selective oxidizing agent, gave mimosamycin (1) in good overall yield.
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