892869-48-6Relevant articles and documents
Combination of amino acid/dipeptide with nitric oxide donating oleanolic acid derivatives as PepT1 targeting antitumor prodrugs
Fang, Lei,Wang, Meng,Gou, Shaohua,Liu, Xuying,Zhang, Huan,Cao, Feng
, p. 1116 - 1120 (2014)
By taking advantage of the cytotoxic effect of nitric oxide (NO) and PepT1 for molecule-targeted drug delivery, a series of amino acid/dipeptide diester prodrugs of NO-donating oleanolic acid derivatives were designed and synthesized. Two prodrugs 6a and 8a showed potent cytotoxcity, which is probably due to their high PepT1 affinity and NO-releasing ability. Furthermore, the aqueous solubility of the prodrugs was also significantly enhanced because of the hydrophilic amino acid/dipeptide promoiety.
Pentacyclic triterpenes. Part 3: Synthesis and biological evaluation of oleanolic acid derivatives as novel inhibitors of glycogen phosphorylase
Chen, Jun,Liu, Jun,Zhang, Luyong,Wu, Guanzhong,Hua, Weiyi,Wu, Xiaoming,Sun, Hongbin
, p. 2915 - 2919 (2007/10/03)
Oleanolic acid and its synthetic derivatives have been identified as novel inhibitors of glycogen phosphorylase. Within this series of compounds, 4 (IC50 = 3.3 μM) is the most potent GPa inhibitor. Preliminary structure-activity relationships of the oleanolic acid derivatives are discussed.