Studies on the New Synthetic Method of Shikonin Analogues
The new synthetic route of shikonin analogues was finished in five reaction steps including methylation, formylation, NHK (Nozaki-Hiyama-Kishi) reaction, protection of oxidative demethoxylation, using 1,4-dihydro-naphthoquinone as the starting material.The route is simple and rapid for synthesizing shikonin analogues.