Results 1 to 10 of about 871 (107)
In Vitro Activity of Thienamycin [PDF]
The in vitro activity of thienamycin was tested against 135 aerobic and anaerobic bacteria. The compound was highly active against resistant gram-negative bacilli and penicillin-resistant Straphylococcus aureus . The antianaerobic spectrum of the drug seemed to be comparable to that of metronidazole.
F P, Tally, N V, Jacobus, S L, Gorbach
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In vitro activity of N-formimidoyl thienamycin (MK0787), a crystalline derivative of thienamycin [PDF]
N-Formimidoyl thienamycin (MK0787) is a derivative of thienamycin, a unique, new beta-lactam antibiotic. Its activity against 285 aerobic and facultatively anaerobic clinical isolates was compared with the activities of cephalothin, ampicillin, penicillin G, ticarcillin, and tobramycin.
V W, Horadam +3 more
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Synthese einer chiralen Thienamycin-Vorstufe / Synthesis of a Chiral Thienamycine Intermediate [PDF]
Abstract A key intermediate of Kametani’s total synthesis of racemic thienamycine has now been prepared in chiral form via a 1.3-dipolar cycloadduct of a chiral nitrone and benzyl crotonate.
Hubert Martin, Rudolf Herrmann, Ivar Ugi
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Antibacterial activities of a new stabilized thienamycin, N-formimidoyl thienamycin, in comparison with other antibiotics [PDF]
The in vitro activity of a new crystalline derivative of thienamycin, N-formimidoyl thienamycin (MK0787), was tested against 46 laboratory reference strains and 2,158 clinical isolates of gram-positive and -negative bacteria, including anaerobes, and compared with cefoxitin, cefaxolin, carbenicillin, and amikacin.
T, Kesado, T, Hashizume, Y, Asahi
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N-formimidoyl thienamycin (MK0787): in vitro study [PDF]
N-Formimidoyl thienamycin (MK0787) was compared in vitro with three other beta-lactam and two aminoglycoside antibiotics. It was second in activity only to cefotaxime against members of the Enterobacteriaceae and to amikacin against Pseudomonas species. It was the most active antibiotic against Staphylococcus aureus.
S, Shadomy, R S, May
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A formal total asymmetric synthesis of (+)-thienamycin
Abstract Synthesis of an enantiomerically pure intermediate to (+)-thienamycin is presented: the pivotal reaction in this sequence is the highly diastereoselective Michael addition of a differentially protected lithium amide.
Davies, S, Hedgecock, C, Mckenna, J
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In vitro activity of N-formimidoyl thienamycin (MK0787) [PDF]
The in vitro activity of N-formimidoyl thienamycin (MK0787), a stable congener of thienamycin, was determined against 200 species of aerobic and 84 species of anaerobic bacteria. The compound was highly active against resistant gram-negative bacilli, penicillin-resistant Staphylococcus aureus, enterococci, and anaerobic bacteria.
F P, Tally, N V, Jacobus, S L, Gorbach
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Methionine inhibition of thienamycin formation
Methionine interference in the formation of thienamycin byStreptomyces cattleya is due, to a major extent, to inhibition of enzyme activity.
Masaru Uyeda, Arnold L. Demain
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A cell-free extract from the thienamycin producer,Streptomyces cattleya, has been found to deacetylate the co-product,N-acetylthienamycin. The pH optimum of the reaction is 7.5. Due to the lability ofN-acetylthienamycin, we used thed andl forms of the synthetic substrateN-chloroacetylvaline.
Masaru Uyeda, Arnold L. Demain
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