New betulinic acid derivatives as potent proteasome inhibitors
作者:Keduo Qian、Sang-Yong Kim、Hsin-Yi Hung、Li Huang、Chin-Ho Chen、Kuo-Hsiung Lee
DOI:10.1016/j.bmcl.2011.07.072
日期:2011.10
study, 22 new betulinicacid (BA) derivatives were synthesized and tested for their inhibition of the chymotrypsin-like activity of 20S proteasome. From the SAR study, we concluded that the C-3 and C-30 positions are the pharmacophores for increasing the proteasome inhibition effects, and larger lipophilic or aromatic side chains are favored at these positions. Among the BA derivatives tested, compounds