Design, synthesis and antitumor activity of pentacyclic triterpenoid ursolic acid derivatives and oleanolic acid derivatives based on multi-target
{{output}}
Totally twelve inhibitors of Survivin and Sp1 based on ursolic acid (UA) derivatives and oleanolic acid (OA) derivatives were designed and synthesized with modification at C-2, C-3 and C-28 of UA and OA. Their structures were confirmed by HRMS,1H NMR and 13C N... ...
