Fluorine-substituted dihydrobicyclomycins: Synthesis and biochemical and biological properties
摘要:
Many studies show that selective introduction of fluorine within pharmacological agents leads to improved activities. In this study, we determine the effects of aryl fluorine substitution in 5a-(benzylsulfanyl)-dihydrobicyclomycin (3) on the in vitro inhibition of Escherichia coli rho-dependent ATPase activity. Compound 3 is an analog of bicyclomycin (1), which is the only known selective inhibitor of rho, and I and 3 have comparable in vitro inhibitory activities. We demonstrate that aryl fluorine substitution of 3 leads to increase in inhibitory activity but that the beneficial effects due to fluorine were dependent upon the site and number of fluorine substituents. The bioactivitics are rationalized in terms of the bond moment created by the aryl fluoride bond within the 5a-aryl dihydrobicyclomycin-rho-binding pocket. Use of this hypothesis led to file design of dihydrobicyclomycin derivatives with superior in vitro rho inhibitory activities. (c) 2005 Elsevier Ltd. All rights reserved.
The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
[EN] INHIBITORS OF FARNESYL-PROTEIN TRANSFERASE<br/>[FR] INHIBITEURS DE LA FARNESYLE-PROTEINE TRANSFERASE
申请人:MERCK & CO., INC.
公开号:WO1997036583A1
公开(公告)日:1997-10-09
(EN) The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.(FR) La présente invention concerne des composés inhibiteurs de la farnésyle-protéine transférase (FTase) et de la farnésylation de la protéine oncogène Ras. L'invention concerne également, non seulement des compositions chimiothérapiques contenant les composés de l'invention, mais aussi des procédés d'inhibition de la farnésyle-protéine transférase et de la farnésylation de la protéine oncogène Ras.