83257-95-8Relevant articles and documents
NOVEL INHIBITORS OF BETA-LACTAMASE
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Page/Page column 20-21, (2010/12/29)
This invention provides novel β-lactamase inhibitors of the aryl- and heteroarylsulfonamidomethylphosphonate monoester class having nitrogen-based cations or quarternary ammonium groups. The compounds inhibit three classes of β-lactamases and synergize the antibacterial effects of β-lactam antibiotics (e.g., imipenem and ceftazidime) against those micro-organisms normally resistant to the β-lactam antibiotics as a result of the presence of the β-lactamases. Formula (I) or pharmaceutically acceptable salt thereof.
NOVEL SULFONAMIDOMETHYLPHOSPHONATE INHIBITORS OF BETA-LACTAMASE
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, (2008/06/13)
This invention provides novel β-lactamase inhibitors of the aryl-and heteroaryl-sulfonamidomethylphosphonate monoester class. The compounds inhibit three classes of β-lactamases and synergize the antibacterial effects of β-lactam antibiotics (e.g., imipenem and ceftazimdime) against those micro-organisms normally resistant to the β-lactam antibiotics as a result of the presence of the β-lactamases. Formula (I) or a pro-drug or pharmaceutically acceptable salt thereof, wherein: W represents: Formula (II).
SYNTHESIS OF NITRO AND AMINO DERIVATIVES OF THE MACROCYCLIC POLYETHER 2,3-BENZO-1,4,7,10,13,16-HEXAOXACYCLOOCTADEC-2-ENE
Abakumova, N. I.,Kolenko, I. K.,Kodess, M. I.
, p. 1305 - 1307 (2007/10/02)
Convenient methods were developed for the synthesis of 1,2-di(2-hydroxyethoxy)benzene, 1,2-di(2-hydroxyethoxy)-4-nitrobenzene, and 1,2-di(2-hydroxyethoxy)-4,6-dinitrobenzene - the intermediate products in the synthesis of nitro and amino derivatives of 2,3-benzo-1,4,7,10,13,16-hexaoxacyclodec-2-ene (benzo-18-crown-6).The effect of the nature of the solvent on the yield of mono- and dinitro derivatives of 1,2-di(2-hydroxyethoxy)benzene in the nitration of the latter was investigated.It was shown that benzo-18-crown-6 and dicyclohexyl-18-crown-6 have a catalytic effect on the yield of the products from O-alkylation of 1,2-dihydroxybenzene and its derivatives.