Chan C, Borthwick AD, Brown D, Burns-Kurtis CL, Campbell M, Chaudry L, Chung CW, Convery MA, Hamblin JN, Johnstone L, Kelly HA, Kleanthous S, Patikis A, Patel C, Pateman AJ, Senger S, Shah GP, Toomey JR, Watson NS, Weston HE, Whitworth C, Young RJ, Zhou P. Factor Xa Inhibitors: S1 Binding Interactions of a Series of N-{(3S)-1-[(1S)-1-Methyl-2-morpholin-4-yl-2-oxoethyl]-2-oxopyrrolidin-3-yl}sulfonamides.
J Med Chem 2007;
50:1546-57. [PMID:
17338508 DOI:
10.1021/jm060870c]
[Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Factor Xa inhibitory activities for a series of N-{(3S)-1-[(1S)-1-methyl-2-morpholin-4-yl-2-oxoethyl]-2-oxopyrrolidin-3-yl}sulfonamides with different P1 groups are described. These data provide insight into binding interactions within the S1 primary specificity pocket; rationales are presented for the derived SAR on the basis of electronic interactions through crystal structures of fXa-ligand complexes and molecular modeling studies. A good correlation between in vitro anticoagulant activities with lipophilicity and the extent of human serum albumin binding is observed within this series of potent fXa inhibitors. Pharmacokinetic profiles in rat and dog, together with selectivity over other trypsin-like serine proteases, identified 1f as a candidate for further evaluation.
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