2oaz: Difference between revisions

High-throughput screening for inhibitors of the human metalloprotease, methionine aminopeptidase-2 (MetAP2), identified a potent class of 3-anilino-5-benzylthio-1,2,4-triazole compounds. Efficient array and interative synthesis of triazoles led to rapid SAR development around the aniline, benzylthio, and triazole moeities. Evaluation of these analogs in a human MetAP2 enzyme assay led to the identification of several inhibitors with potencies in the 50-100 picomolar range. The deleterious effects on inhibitor potency by methylation of the anilino-triazole nitrogens, as well as the X-ray crystal structure of triazole 102 bound in the active site of MetAP2, confirm the key interactions between the triazole nitrogens, the active site cobalt atoms, and the His-231 side-chain. The structure has also provided a rationale for interpreting SAR within the triazole series. Key aniline (2-isopropylphenyl) and sulfur substituents (furanylmethyl) identified in the SAR studies led to the identification of potent inhibitors (103 and 104) of endothelial cell proliferation. Triazoles 103 and 104 also exhibited dose-dependent activity in an aortic ring tissue model of angiogenesis highlighting the potential utility of MetAP2 inhibitors as anticancer agents.

[[Category: Fisher, P W.]]

[[Category: Hofmann, G A.]]

[[Category: Janson, C A.]]

[[Category: Johnson, R K.]]

[[Category: Jr., J P.Marino.]]

[[Category: Jr., T A.Tomazek.]]

[[Category: Meek, T D.]]

[[Category: Smith, W W.]]

[[Category: Tew, D G.]]

[[Category: Thompson, S K.]]

[[Category: Veber, D F.]]

[[Category: Xiong, W C.]]

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