TRITERPENOID DERIVATIVES USEFUL AS ANTIPROLIFERATIVE AGENTS
申请人:Ribeiro Salvador Jorge Antonio
公开号:US20120129901A1
公开(公告)日:2012-05-24
Formula (I) and (II). The present invention relates to the use of a new lupane derivative of general formula (I) or (II), or a pharmaceutically acceptable salt, crystal form, complex, hydrate, or hydrolysable ester thereof, for preventing and/or inhibiting tumor growth and for treating cancer and other proliferative diseases, more particularly for treating leukemia, liver, cervical, colon and prostate cancer. The present invention also relates to the synthesis of these compounds and to pharmaceutical compositions which contain them.
Novel semisynthetic derivatives of betulin and betulinic acid with cytotoxic activity
作者:Rita C. Santos、Jorge A.R. Salvador、Silvia Marín、Marta Cascante
DOI:10.1016/j.bmc.2009.07.050
日期:2009.9.1
N-acylimidazole derivatives of betulin and betulinicacid (14–29) have been synthesized. The new compounds were screened for in vitro cytotoxicity activity against human cancer cell lines HepG2, Jurkat and HeLa. A number of compounds have shown IC50 values lower than 2 μM against the cancer cell lines tested and the vast majority has shown a better cytotoxicity profile than betulinicacid, including the