Pentacyclic triterpene acid conjugated with mitochondria-targeting cation F16: Synthesis and evaluation of cytotoxic activities
作者:Anna Yu. Spivak、Darya A. Nedopekina、Rinat R. Gubaidullin、Eldar V. Davletshin、Adis A. Tukhbatullin、Vladimir A. D’yakonov、Milyausha M. Yunusbaeva、Lilya U. Dzhemileva、Usein M. Dzhemilev
DOI:10.1007/s00044-021-02702-z
日期:2021.4
The first representatives of F16-conjugated pentacyclic triterpenoids, betulin and betulinic, ursolic, oleanolic, and glycyrrhetic acid derivatives, were synthesized. The triterpene core was linked, at the С-3, С-28, or С-30 position, to one or two mitochondria-targeting delocalized lipophilic cations F16 via butane or triethylene glycol spacer. The human cancer cell lines U937 (leukemic monocyte lymphoma)
Development of C-20 modified betulinic acid derivatives as antitumor agents
作者:Jin Yung Kim、Han-Mo Koo、Darrick S.H.L Kim
DOI:10.1016/s0960-894x(01)00460-7
日期:2001.9
Chemical modifications were performed on C-20 position of betulinic acid for a structure-activity relationship study. The evaluation of the compounds using human colon carcinoma HCT-116, human prostate adenocarcinoma PC3, and human melanoma cell lines M14-MEL, SK-MEL-2, and UACC-257 did not show any selective cytotoxicity towards melanoma cells. The results from both MTT reduction assay and SRB staining assay were comparable that no remarkable differences in cytotoxicity profile of the compounds were noticed. The C-20 position was found to be sensitive to the size and the electron density of the substituents in retaining the cytotoxicity of betulinic acid and was found to be undesirable position to derivatize. (C) 2001 Elsevier Science Ltd. All rights reserved.