State Key Laboratory of Phytochemistry and Plant Resources in West China;
Kunming Institute of Botany;
Chinese Academy of Sciences;
Kunming 650201;
China;
Graduate University of Chinese Academy of Sciences;
Beijing 100049;
China;
total synthesis; crotonine; 2-(furan-2-yl)-5-(2; 3; 4-trihydroxy-butyl)-1; 4-diazine; Croton tiglium L.(Euphoriaceae); analgesics;