Synthesis of 1-0-[(3S,4R)-3-hydroxytetrahydrofuran-4-yl]-α-D-glucopyranoside 3,4,3′-trisphosphate as a novel potent IP3 receptor ligand
摘要:
1-O-[(3S,4R)-3-Hydroxytetrahydrofuran-4-yl]-alpha-D-glucopyranoside 3,4,3'-trisphosphate (5) was designed and synthesized as a novel IP3 receptor ligand. This compound bound strongly to IP3 receptor from porcine cerebella with an affinity comparable to that of IP3. (C) 1998 Elsevier Science Ltd. All rights reserved.
Synthesis of Adenophostin Analogues Lacking the Adenine Moiety as Novel Potent IP3 Receptor Ligands: Some Structural Requirements for the Significant Activity of Adenophostin A
摘要:
1-O-Tetrahydrofuranyl-alpha-D-glucopyranose derivatives 5-8 were designed and synthesized as novel IP3 receptor ligands. The glycosidation reactions between fluoroglycosyl donor 23 and tetrahydrofuran derivatives 11-14 as glycosyl accepters selectively gave the corresponding alpha-glycosides, which were converted into the target Compounds 5-8 via the introduction of phosphate groups using the phosphoramidite method. Among these compounds, 1-O-tetrahydrofuranyl-alpha-D-glucopyranose trisphosphate derivatives 5 and 8 significantly inhibited the binding of [H-3] IP3 to IP3 receptor from porcine cerebella, with IC50 values of 25 and 27 nM, respectively, which were comparable to the affinity of IP3 itself.