Cyclobisintercaland Macrocycles: Synthesis and Physicochemical Properties of Macrocyclic Polyamines Containing Two Crescent-Shaped Dibenzophenanthroline Subunits
摘要:
A general access to isomeric dibenzo[bj]phenanthrolinedicarboxaldehydes is described. These pentacyclic planar quinacridine compounds exhibit crescent-shaped forms that fulfill the geometrical requirements of providing broad overlap of nucleobase pairs or triplets. The dialdehyde derivatives have been condensed with various polyamines to give macrocyclic dimeric structures, cyclobisintercalands, of variable size, charge, and shape. The related water-soluble monomeric quinacridines were prepared from the dialdehydes by grafting ammonium groups; The physicochemical properties of the monomeric quinacridines and of the macrocyclic bis-quinacridines have been investigated by spectroscopic methods (UV-vis, fluorescence, NMR). The results show that some of these macrocyclic compounds could exist as semiclosed conformers suitable to accommodate a pair of nucleotides.
Cyclobisintercaland Macrocycles: Synthesis and Physicochemical Properties of Macrocyclic Polyamines Containing Two Crescent-Shaped Dibenzophenanthroline Subunits
摘要:
A general access to isomeric dibenzo[bj]phenanthrolinedicarboxaldehydes is described. These pentacyclic planar quinacridine compounds exhibit crescent-shaped forms that fulfill the geometrical requirements of providing broad overlap of nucleobase pairs or triplets. The dialdehyde derivatives have been condensed with various polyamines to give macrocyclic dimeric structures, cyclobisintercalands, of variable size, charge, and shape. The related water-soluble monomeric quinacridines were prepared from the dialdehydes by grafting ammonium groups; The physicochemical properties of the monomeric quinacridines and of the macrocyclic bis-quinacridines have been investigated by spectroscopic methods (UV-vis, fluorescence, NMR). The results show that some of these macrocyclic compounds could exist as semiclosed conformers suitable to accommodate a pair of nucleotides.
An efficient synthetic pathway toward various substituted quinacridines 1 and 2 has been developed. Compared to the previous method, higher yields and easier workup were obtained.
已开发出一条合成多种取代喹吖啶1和2的高效合成途径。与之前的方法相比,该方法产量更高,操作更简便。
Cyclobisintercaland Macrocycles: Synthesis and Physicochemical Properties of Macrocyclic Polyamines Containing Two Crescent-Shaped Dibenzophenanthroline Subunits
A general access to isomeric dibenzo[bj]phenanthrolinedicarboxaldehydes is described. These pentacyclic planar quinacridine compounds exhibit crescent-shaped forms that fulfill the geometrical requirements of providing broad overlap of nucleobase pairs or triplets. The dialdehyde derivatives have been condensed with various polyamines to give macrocyclic dimeric structures, cyclobisintercalands, of variable size, charge, and shape. The related water-soluble monomeric quinacridines were prepared from the dialdehydes by grafting ammonium groups; The physicochemical properties of the monomeric quinacridines and of the macrocyclic bis-quinacridines have been investigated by spectroscopic methods (UV-vis, fluorescence, NMR). The results show that some of these macrocyclic compounds could exist as semiclosed conformers suitable to accommodate a pair of nucleotides.