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InChI=1S/C16H21BrN2/c1-5-16(2,3)15-13(8-9-18-4)12-7-6-11(17)10-14(12)19-15/h5-7,10,18-19H,1,8-9H2,2-4H3 N Key:GQHSCJUTJKLZPX-UHFFFAOYSA-N N
Desformylflustrabromine (dFBr) is a tryptamine derivative which was first isolated as an active metabolite of the marine bryozoan Flustra foliacea.[1]
dFBr has been identified as a novel positive allosteric modulator of neuronal nicotinic acetylcholine receptor with sub-type specificity for heteromeric receptor with no effect on homomeric sub-type.[2] A recent study has been published which describes the synthesis of water-soluble salts of dFBr and its action has been confirmed as selective potentiator of α4β2 nicotinic acetylcholine receptor responses by using two-electrode voltage clamp whole cell recordings.[3] In the year 2002 it was reported that dFBr was cytotoxic on human colon cancer cell line HCT-116.[4] Desformylflustrabromine has also been found to be a positive allosteric modulator for the α2β2 subtype of neuronal nicotinic acetylcholine receptor. Additionally it relieves the inhibition of both α2β2 and α4β2 Nicotinic Acetylcholine Receptors by β-Amyloid (1–42) Peptide.[5] Thus Desformylflustrabromine can potentially be used in the treatment of Alzheimer’s disease. Many of the deconstructed analogs of dFBr are reported to have a potentiating effect on the α4β2 receptors.[6]
Note: Many of the AChE inhibitors listed above also act as BChE inhibitors.
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