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Volumn 9, Issue 17, 1999, Pages 2549-2554

Synthesis and SAR of thioester and thiol inhibitors of IMP-1 metallo-β-lactamase

Author keywords

[No Author keywords available]

Indexed keywords

2 HYDROXYACID; ALANINE DERIVATIVE; BETA LACTAMASE; BETA LACTAMASE INHIBITOR; RESIN; THIOACETIC ACID; THIODEPSIPEPTIDE; THIOESTER; THIOL; UNCLASSIFIED DRUG;

EID: 0033530093     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0960-894X(99)00425-4     Document Type: Article
Times cited : (63)

References (46)
  • 21
    • 0009702232 scopus 로고    scopus 로고
    • note
    • Simple thiol compounds, including mercaptoacetic acid and mercaptopropionic acid, have previously been reported to be inhibitors of IMP-1 (ref 7a).
  • 22
    • 0009679454 scopus 로고    scopus 로고
    • note
    • 2Ph) was prepared directly from (S)-phenyllactic acid (via steps c and d below).
  • 25
    • 0009714716 scopus 로고    scopus 로고
    • note
    • Higher resin loadings could be achieved by coupling the substrate to the HMPB linker (activated as a 2,4-dichlorophenyl ester) prior to its attachment to the resin as shown below (cf ref 14).
  • 27
    • 0023973734 scopus 로고
    • Alloc-D-thioalanine was prepared from alloc-D-alanine by the method described in the following ref: Yamashiro, D.; Li, C. H. Int. J. Peptide Protein Res. 1988, 31, 322.
    • (1988) Int. J. Peptide Protein Res. , vol.31 , pp. 322
    • Yamashiro, D.1    Li, C.H.2
  • 34
    • 0009711886 scopus 로고    scopus 로고
    • note
    • 2CI/DIEA as well as use of pre-formed Ac-OPfp and Ac-OSu esters.
  • 35
    • 21344476372 scopus 로고
    • Use of N-t-butyl-N'-ethylcarbodiimide gives a soluble urea by-product which is compatible with the solid-phase reaction; cf Izdebski, J.; Pawlak, D. Polish J. Chem. 1994, 68, 403.
    • (1994) Polish J. Chem. , vol.68 , pp. 403
    • Izdebski, J.1    Pawlak, D.2
  • 36
    • 0009703736 scopus 로고    scopus 로고
    • note
    • With deactivated anhydrides (cf entries 2ah and 2ak, Table 1) varying amounts of unacylated amine and N-allylamine by-products were observed.
  • 37
    • 0009744877 scopus 로고    scopus 로고
    • note
    • 2O, isocratic elution with A:B ranging from 50:50 to 75:25; Flow rate, 1.0 mL/min; UV detection at 210 nm.
  • 38
    • 0009677930 scopus 로고    scopus 로고
    • note
    • 1H NMR (500 MHz) and MS data were obtained for all compounds described herein.
  • 39
    • 0009732733 scopus 로고    scopus 로고
    • note
    • 2 and the resulting product analyzed by HPLC which indicated a purity of >97%.
  • 40
    • 0009677331 scopus 로고    scopus 로고
    • note
    • 2 (5 × 0.25mL) and the solution evaporated to give 2.7 mg of 2x as an oil (97% yield, 98% HPLC purity).
  • 42
    • 0009744878 scopus 로고    scopus 로고
    • note
    • m concentrations (60 μM and 18 μM for IMP-1 and CcrA, respectively). For the enzyme preparations see ref 28 (CcrA) and ref 31 (IMP-1 ).
  • 45
    • 0009745588 scopus 로고    scopus 로고
    • note
    • Established both semi-quantitatively by HPLC analysis (ref 22) and quantitatively using Ellman's reagent to measure thiol formation spectrophotometrically (ref 31). Background chemical hydrolysis of these thioesters was found to be negligible under the conditions of the enzyme assay.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.