Binding of acetylcholine and quaternary ammonium compounds to a C3-symmetric bowl-shaped tripeptide of 2-(3-aminophenoxy)propanoic acids acting as a ditopic receptor

Add time:09/03/2019    Source:sciencedirect.com

The new tripeptide reported here is composed of (R)-2-(3-aminophenoxy)propionic acid and is a bowl-shaped receptor that simultaneously binds both cations and anions of acetylcholine chloride and benzyltrimethylammonium compounds. An intriguing conformational change of the host was observed in the complexation of the ionic pair, where anion-induced flipping of the amide group on the macrocycle occurred.

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