Synthesis of New (−)-Bestatin-Based Inhibitor Libraries Reveals a Novel Binding Mode in the S1 Pocket of the Essential Malaria M1 Metalloaminopeptidase
摘要:
The malarial PfA-M1 metalloaminopeptidase is considered a putative drug target. The natural product dipeptide mimetic, bestatin, is a potent inhibitor of PfA-M1. Herein we present a new, efficient, and high-yielding protocol for the synthesis of bestatin derivatives from natural and unnatural N-Boc-D-amino acids. A diverse library of bestatin derivatives was synthesized with variants at the side chain of either the alpha-hydroxy-beta-amino acid (P1) or the adjacent natural a-amino add (P1'). Surprisingly, we found that extended aromatic side chains at the P1 position resulted in potent inhibition against PfA-M1. To understand these data, we determined the X-ray cocrystal structures of PfA-M1 with two derivatives having either a Tyr(OMe) 15 or Tyr(OBz1) 16 at the 131 position and observed substantial inhibitor-induced rearrangement of the primary loop within the PEA-M1 pocket that interacts with the PI side chain. Our data provide important insights for the rational design of more potent and selective inhibitors of this enzyme that may eventually lead to new therapies for malaria.
[EN] INHIBITORS OF FARNESYL-PROTEIN TRANSFERASE<br/>[FR] INHIBITEURS DE FARNESYLE-PROTEINE TRANSFERASE
申请人:MERCK & CO., INC.
公开号:WO1995000497A1
公开(公告)日:1995-01-05
(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) L'invention concerne des composés inhibiteurs de farnésyle-protéine transférase (Ftase) et la farnésylation de la protéine d'oncogène Ras. L'invention concerne en outre des compositions chimiothérapiques contenant les composés de l'invention, des procédés d'inhibition de farnesyle-protéine transférase et la farnésylation de la protéine d'oncogène Ras.
Inhibitors of farnesyl-protein transferase
申请人:Merck & Co., Inc.
公开号:US05736539A1
公开(公告)日:1998-04-07
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. The compounds of formula A are representative of the compounds of the present invention: ##STR1##
Synthesis of New (−)-Bestatin-Based Inhibitor Libraries Reveals a Novel Binding Mode in the S1 Pocket of the Essential Malaria M1 Metalloaminopeptidase
作者:Geetha Velmourougane、Michael B. Harbut、Seema Dalal、Sheena McGowan、Christine A. Oellig、Nataline Meinhardt、James C. Whisstock、Michael Klemba、Doron C. Greenbaum
DOI:10.1021/jm101227t
日期:2011.3.24
The malarial PfA-M1 metalloaminopeptidase is considered a putative drug target. The natural product dipeptide mimetic, bestatin, is a potent inhibitor of PfA-M1. Herein we present a new, efficient, and high-yielding protocol for the synthesis of bestatin derivatives from natural and unnatural N-Boc-D-amino acids. A diverse library of bestatin derivatives was synthesized with variants at the side chain of either the alpha-hydroxy-beta-amino acid (P1) or the adjacent natural a-amino add (P1'). Surprisingly, we found that extended aromatic side chains at the P1 position resulted in potent inhibition against PfA-M1. To understand these data, we determined the X-ray cocrystal structures of PfA-M1 with two derivatives having either a Tyr(OMe) 15 or Tyr(OBz1) 16 at the 131 position and observed substantial inhibitor-induced rearrangement of the primary loop within the PEA-M1 pocket that interacts with the PI side chain. Our data provide important insights for the rational design of more potent and selective inhibitors of this enzyme that may eventually lead to new therapies for malaria.