title: Synthesis of dopamine and serotonin derivatives for immobilization on a solid support.
abstract: The two important neurotransmitters dopamine and serotonin are synthesized with short PEG tethers and immobilized on a magnetic solid support. The tether is attached to the aromatic moiety of the neurotransmitters to conserve their original functional groups. This approach causes minimal alteration of the original structure with the aim of optimizing the immobilized neurotransmitters for aptamer selection by SELEX. For the dopamine derivative, the tether is attached to the aromatic core of a dopamine precursor by the Sonogashira reaction. For serotonin, a link to the indole core is introduced by a Claisen rearrangement from the allylated phenol moiety of serotonin. The tethers are azide-functionalized, which enables coupling to alkyne-modified magnetic beads. The coupling to the magnetic beads is quantified by UV spectroscopy using Fmoc-monitoring of the immobilized dopamine and serotonin derivatives.
authors.affiliation: Danish National Research Foundation, Center for DNA Nanotechnology (CDNA), Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark.
authors.forename: Erik Daa
authors.initials: ED
authors.lastname: Funder
authors.forename: Anne Bjørnskov
authors.initials: AB
authors.lastname: Jensen
authors.forename: Thomas
authors.initials: T
authors.lastname: Tørring
authors.forename: Anne Louise Bank
authors.initials: AL
authors.lastname: Kodal
authors.forename: Ane Rebolledo
authors.initials: AR
authors.lastname: Azcargorta
authors.forename: Kurt Vesterager
authors.initials: KV
authors.lastname: Gothelf
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D004298:Dopamine / Q000138:chemical synthesis* / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D015394:Molecular Structure; D018377:Neurotransmitter Agents / Q000737:chemistry*; D012701:Serotonin / Q000138:chemical synthesis* / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000480:Alkynes; D007211:Indoles; D018377:Neurotransmitter Agents; D012701:Serotonin; D004298:Dopamine