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A new motif for inhibitors of geranylgeranyl diphosphate synthase.


ABSTRACT: The enzyme geranylgeranyl diphosphate synthase (GGDPS) is believed to receive the substrate farnesyl diphosphate through one lipophilic channel and release the product geranylgeranyl diphosphate through another. Bisphosphonates with two isoprenoid chains positioned on the ?-carbon have proven to be effective inhibitors of this enzyme. Now a new motif has been prepared with one isoprenoid chain on the ?-carbon, a second included as a phosphonate ester, and the potential for a third at the ?-carbon. The pivaloyloxymethyl prodrugs of several compounds based on this motif have been prepared and the resulting compounds have been tested for their ability to disrupt protein geranylgeranylation and induce cytotoxicity in myeloma cells. The initial biological studies reveal activity consistent with GGDPS inhibition, and demonstrate a structure-function relationship which is dependent on the nature of the alkyl group at the ?-carbon.

SUBMITTER: Foust BJ 

PROVIDER: S-EPMC4955788 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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A new motif for inhibitors of geranylgeranyl diphosphate synthase.

Foust Benjamin J BJ   Allen Cheryl C   Holstein Sarah A SA   Wiemer David F DF  

Bioorganic & medicinal chemistry 20160610 16


The enzyme geranylgeranyl diphosphate synthase (GGDPS) is believed to receive the substrate farnesyl diphosphate through one lipophilic channel and release the product geranylgeranyl diphosphate through another. Bisphosphonates with two isoprenoid chains positioned on the α-carbon have proven to be effective inhibitors of this enzyme. Now a new motif has been prepared with one isoprenoid chain on the α-carbon, a second included as a phosphonate ester, and the potential for a third at the α-carbo  ...[more]

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