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Design and synthesis of pyrazole derivatives as potent and selective inhibitors of tissue-nonspecific alkaline phosphatase (TNAP).


ABSTRACT: Tissue-nonspecific alkaline phosphatase (TNAP) plays a central role in regulating extracellular matrix calcification during bone formation and growth. High-throughput screening (HTS) for small molecule TNAP inhibitors led to the identification of hits in the sub-micromolar potency range. We report the design, synthesis and in vitro evaluation of a series of pyrazole derivatives of a screening hit which are potent TNAP inhibitors exhibiting IC(50) values as low as 5nM. A representative of the series was characterized in kinetic studies and determined to have a mode of inhibition not previously observed for TNAP inhibitors.

SUBMITTER: Sidique S 

PROVIDER: S-EPMC2752324 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature

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Design and synthesis of pyrazole derivatives as potent and selective inhibitors of tissue-nonspecific alkaline phosphatase (TNAP).

Sidique Shyama S   Ardecky Robert R   Su Ying Y   Narisawa Sonoko S   Brown Brock B   Millán José Luis JL   Sergienko Eduard E   Cosford Nicholas D P ND  

Bioorganic & medicinal chemistry letters 20081031 1


Tissue-nonspecific alkaline phosphatase (TNAP) plays a central role in regulating extracellular matrix calcification during bone formation and growth. High-throughput screening (HTS) for small molecule TNAP inhibitors led to the identification of hits in the sub-micromolar potency range. We report the design, synthesis and in vitro evaluation of a series of pyrazole derivatives of a screening hit which are potent TNAP inhibitors exhibiting IC(50) values as low as 5nM. A representative of the ser  ...[more]

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