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Glucose-6-phosphatase catalytic enzyme inhibitors: synthesis and in vitro evaluation of novel 4,5,6,7-tetrahydrothieno[3,2-c]- and -[2,3-c]pyridines.

Abstract：

:The discovery of the first class of potent glucose-6-phosphatase catalytic site inhibitors, substituted 4,5,6,7-tetrahydrothieno[3,2-c]- and -[2,3-c]pyridines, is described. Optimisation of this series involved solution phase combinatorial synthesis and very potent compounds were prepared with IC50 values down to 140 nM. The structure activity relationship (SAR) of these compounds indicates that: a tetrahydrothieno[3,2-c]pyridine core ring system and the isomeric [2,3-c] system are equipotent and much better than the corresponding benzo analogue, 1,2,3,4-tetrahydro-isoquinoline. The 4-substituent of the tetrahydrothieno[3,2-c]pyridine ring has to be a phenyl group, optionally substituted with a lipophilic 4-substituent, such as trifluoromethoxy or chloro. The 5-substituent of the tetrahydrothieno[3,2-c]pyridine ring has to be a substituted benzoyl; anisoyl and (E)-3-furan-3-ylacryloyl are the best of the investigated groups. Substitution in the benzoyl ortho position seems to be forbidden, whereas substitution in the meta position is tolerated only if a methoxy para substituent is present. These SAR findings were parallel to those obtained in the 4,5,6,7-tetrahydrothieno[2,3-c]pyridine system. Enantioselectivity in enzyme recognition was observed and the activity resided in all cases only in one of the enantiomers.

journal_name

Bioorg Med Chem

journal_title

Bioorganic & medicinal chemistry

authors

Madsen P,Lundbeck JM,Jakobsen P,Varming AR,Westergaard N

doi

10.1016/s0968-0896(00)00153-x

subject

Has Abstract

pub_date

2000-09-01 00:00:00

pages

2277-89

issue

9

eissn

0968-0896

issn

1464-3391

pii

S0968-0896(00)00153-X

journal_volume

8

pub_type

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