Cytotoxic activity of (S)-goniothalamin and analogues against human cancer cells
作者:Ângelo de Fátima、Luciana K. Kohn、João Ernesto de Carvalho、Ronaldo A. Pilli
DOI:10.1016/j.bmc.2005.08.036
日期:2006.2
(R)- and (S)-Goniothalamin (1) and analogues 2-9 were efficiently prepared in high overall yield and enantiomeric purity, and their cytotoxic activities were evaluated against eight human cancer cell lines. A structure-activity relationship study (SAR) allowed us to establish the relevant structural features for the cytotoxic activity of goniothalamin analogues. In addition, we have identified non-natural form of goniothalamin (S)-1 and analogue 5 as the highest and more selective cytotoxic compounds against kidney cancer cell growth (786-0) with IC50 = 4 and 5 nM, respectively, and compound 8 (IC50 = 4 nM) as the more potent against breast cancer cells with resistance phenotype for adryamycin (c) 2005 Elsevier Ltd. All rights reserved.
Asymmetric allylboration for the synthesis of β-hydroxy-δ-lactone unit of statin drug analogs
作者:M.Venkat Ram Reddy、Herbert C Brown、P.Veeraraghavan Ramachandran
DOI:10.1016/s0022-328x(01)00665-9
日期:2001.4
Iterative approach to polyketide-type structures: stereoselective synthesis of 1,3-polyols utilizing the catalytic asymmetric Overman esterification
作者:Jörg T. Binder、Stefan F. Kirsch
DOI:10.1039/b708248g
日期:——
An iterative systematic approach to the 1,3-polyol motif has been developed to provide access to all possible stereoisomers by utilizing the catalytic asymmetric Overman esterification for the construction of all stereogenic centres.