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cyclopeptide/carie dentaria
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A cyclopeptide-derived molecular cage for sulfate ions that closes with a click.
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The 2:1 sandwich-type complexes formed between a cyclopeptide with alternating L-proline and 6-aminopicolinic acid subunits and inorganic anions can be stabilized by covalently linking a tris-alkyne and a tris-azide derivative of this peptide through copper-catalyzed azide-alkyne cycloaddition. The
A molecular oyster: a neutral anion receptor containing two cyclopeptide subunits with a remarkable sulfate affinity in aqueous solution.
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An artificial anion receptor is presented, in which two cyclohexapeptide subunits containing l-proline and 6-aminopicolinic acid subunits in an alternating sequence are connected via an adipinic acid spacer. This compound was devised to stabilize the 2:1 sandwich-type anion complexes that are
Palladium(II)-Mediated Assembly of a M2L2 Macrocycle and M3L6 Cage from a Cyclopeptide-Derived Ligand.
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A cyclic tetrapeptide L comprising two l-proline and two 3-amino-5-(pyridin-4-yl)benzoic acid subunits assembles into a dimetallic metallamacrocycle Pd2L2 and a trimetallic coordination cage Pd3L6 in the presence of
Effects of Solvent Properties on the Anion Binding of Neutral Water-Soluble Bis(cyclopeptides) in Water and Aqueous Solvent Mixtures.
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In this study, the anion-binding bis(cyclopeptide) 2 is introduced, which dissolves freely in water, affording up to 10 mM concentrations, thanks to triethylene glycol-derived substituents in the cyclopeptide subunits and the linker connecting them. Binding studies provided evidence that the
Anion Binding of a Cyclopeptide-Derived Molecular Cage in Aqueous Solvent Mixtures.
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A molecular cage consisting of two cyclic hexapeptides with an alternating sequence of (2S,4S)-4-aminoproline and 6-aminopicolinic acid subunits, covalently linked via three diglycolic acid subunits, interacts with a variety of inorganic anions in acetonitrile/water. In the respective complexes, the
Anion Recognition in Aqueous Media by Cyclopeptides and Other Synthetic Receptors.
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Anion receptors often rely on coordinative or multiple ionic interactions to be active in water. In the absence of such strong interactions, anion binding in water can also be efficient, however, as demonstrated by a number of anion receptors developed in recent years. The cyclopeptide-derived
Calculating three-dimensional molecular structure of paliurine B from atom-atom distance and restrained energy minimization.
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The conformation of paliurine B, a 13-membered cyclopeptide alkaloid isolated from Paliurus ramosissimus, has been determined from 2D NMR and distance geometry, followed by the restrained energy minimization calculation. The conformation of the 13-membered ring is well-defined but that of the
Anion-binding properties of a cyclic pseudohexapeptide containing 1,5-disubstituted 1,2,3-triazole subunits.
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A C(3) symmetric cyclic pseudohexapeptide containing 2-aminopicoline-derived subunits and 1,5-disubstituted 1,2,3-triazole rings is introduced as a potent anion receptor. This macrocycle was designed to mimic both the conformation and the receptor properties of a previously described cyclic
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