New DNA binding ligands as a model of chromomycin A3
摘要:
Small molecules with DNA-binding affinity within the minor groove have become of great interest. In this study, new DNA-binding ligands were designed to mimic Chromomycin A(3) (CRA(3)) which contains a hydroxylated tetrahydroanthracene chromophore substituted with di and trisaccharides. The trisaccharide part of CRA(3) that is supposed to contribute to form the Mg2+-coordinated dimer was expected to be mimicked by a simple alkyl group attached to the chromophore part as new model compounds. The present study has successfully demonstrated that the new ligands form Mg2+-coordinated dimer complexes to exhibit DNA-binding affinity. (C) 2004 Elsevier Ltd. All rights reserved.
New DNA binding ligands as a model of chromomycin A3
摘要:
Small molecules with DNA-binding affinity within the minor groove have become of great interest. In this study, new DNA-binding ligands were designed to mimic Chromomycin A(3) (CRA(3)) which contains a hydroxylated tetrahydroanthracene chromophore substituted with di and trisaccharides. The trisaccharide part of CRA(3) that is supposed to contribute to form the Mg2+-coordinated dimer was expected to be mimicked by a simple alkyl group attached to the chromophore part as new model compounds. The present study has successfully demonstrated that the new ligands form Mg2+-coordinated dimer complexes to exhibit DNA-binding affinity. (C) 2004 Elsevier Ltd. All rights reserved.
Stereoselective synthesis of (+)-2-deoxyolivin based on cycloaddition reaction between the homophthalic anhydride and the chiral cyclohexenone derivative
tricyclic aglycon core, olivin. In this study, we established the efficient synthesis of the anthracenone core skeleton based on a cycloaddition reaction between the homophthalic anhydride and the chiral cyclohexenone derivatives, which is promoted by the combined use of molecular sieves, proton sponge, and a Lewisacid. The cyclohexenone with four chiral centers was synthesized by asymmetric and diastereoselective