Starting from the pharmacophore model for HDAC inhibitor design, a novel series of hydroxamates bearing a uracil moiety as connecting unit (CU) has been prepared and tested. Almost all compounds exhibited HDAC inhibiting activity at low nanomolar concentrations, the N-hydroxy-6-(3,4-dihydro-4-oxo-6-benzyl- and -6-phenyl-2-pyrimidinylthio)hexanamides 1d and 11 being more potent than SAHA in enzymatic assays. Such compounds also caused hyperacetylation in NIH3T3 cell core histones and were endowed with interesting antiproliferative and cytodifferentiating effects in human leukemia (HL-60) cells. (c) 2005 Elsevier Ltd. All rights reserved.
机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Leszczyniecka, M
Roberts, T
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机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Roberts, T
Dent, P
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机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Dent, P
Grant, S
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机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Grant, S
Fisher, PB
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Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USAColumbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Leszczyniecka, M
Roberts, T
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机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Roberts, T
Dent, P
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机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Dent, P
Grant, S
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机构:Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA
Grant, S
Fisher, PB
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Columbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USAColumbia Univ, Coll Phys & Surg, Dept Urol, Herbert Irving Comprehens Canc Ctr, New York, NY 10032 USA