Enantio- and Substrate-Selective Recognition of Chiral Neurotransmitters with C3-Symmetric Switchable Receptors
2020
We report on the synthesis of C3-symmetric enantiopure cage molecules 1, which exhibit remarkable to exclusive enantioselective recognition properties toward chiral ammonium neurotransmitters. Strong changes in the substrate selectivity are also observed when different stereoisomers of 1 are used. Furthermore, protonation/deprotonation induces a reversible modification of the conformation of 1, which switches from an imploded to an inflated form, leading to ejection and reuptake of the guest initially encaged inside the cavity.
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