Discovery of a Dual Tubulin Polymerization and Cell Division Cycle 20 Homologue Inhibitor via Structural Modification on Apcin
摘要:
Apcin is one of the few compounds that have been previously reported as a Cdc20 specific inhibitor, although Cdc20 is a very promising drug target. We reported here the design, synthesis, and biological evaluations of 2,2,2-trichloro-1-aryl carbamate derivatives as Cdc20 inhibitors. Among these derivatives, compound 9f was much more efficient than the positive compound apcin in inhibiting cancer cell growth, but it had approximately the same binding affinity with apcin in SPR assays. It is possible that another mechanism of action might exist. Further evidence demonstrated that compound 9f also inhibited tubulin polymerization, disorganized the microtubule network, and blocked the cell cycle at the M phase with changes in the expression of cyclins. Thus, it induced apoptosis through the activation of caspase-3 and PARP. In addition, compound 9f inhibited cell migration and invasion in a concentration-dependent manner. These results provide guidance for developing the current series as potential new anticancer therapeutics.
Sequential chirality transfer in intramolecular amidomercuration reactions
作者:Kenn E. Harding、Donald R. Hollingsworth、Joseph Reibenspies
DOI:10.1016/s0040-4039(01)80505-0
日期:1989.1
stereochemistry in the amination of allyl alcohol is effected by transfer of chirality from a chiral auxiliary to the amidal carbon of an N-acylaminomethyl ether derivative, which upon intramolecularamidomercuration results in a second transfer of chirality to the new CN stereocenter.
Expedient Synthesis of Perhaloaldehyde N-Acyl Hemiaminals
作者:Laurent Ingrassia
DOI:10.1055/s-1999-3586
日期:1999.10
Stereoselective reactions of N-acyl-N,O-acetals with 2-(trimethysilyloxy)furan
作者:Kenn E. Harding、M. Todd Coleman、Lee T. Liu
DOI:10.1016/s0040-4039(00)79378-6
日期:1991.7
Reactions of acyclic chiral N-acyl-N,O-acetals with 2-(trimethylsilyloxy)furan and BF3.Et2O produces 4-(aminoalkyl)-2-buten-4-olides in 30% to 62% yield and variable diastereomeric excesses of the syn (threo) stereoisomer. Selectivity is dependent on the structure of N-acyl-N,O-acetal used.
HARDING, K. E.;HOLLINGSWORTH, D. R.;REIBENSPIES, J., TETRAHEDRON LETT., 30,(1989) N6, C. 4775-4778
作者:HARDING, K. E.、HOLLINGSWORTH, D. R.、REIBENSPIES, J.