Wiedemeyer K, Wünsch B. Synthesis of novel σ-receptor ligands from methyl α-d-mannopyranoside.
Carbohydr Res 2006;
341:2321-34. [PMID:
16854396 DOI:
10.1016/j.carres.2006.06.016]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2006] [Revised: 06/07/2006] [Accepted: 06/22/2006] [Indexed: 11/24/2022]
Abstract
For the first time a monosaccharide (methyl alpha-D-mannopyranoside) has been used as starting material for the synthesis of novel sigma-receptor ligands. The hept-3-ulopyranoside dimethyl ketals 14 and 15 were obtained from the nitrile 7 via two synthetic routes. After selective hydrolysis of the ketone dimethyl acetal, various amino substituents were introduced into position 3. High sigma(1)-receptor affinity and selectivity was attained with equatorially arranged amino substituents in position 3 and a dichlorophenylacetamide moiety in position 7. The anomeric mixture of dimethylamines 26alpha/beta displayed the highest sigma(1)-receptor affinity (K(i)=21nM) within this small series of test compounds.
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