Results 11 to 20 of about 4,496 (180)
Hydantoin and hydrogen-bonding patterns in hydantoin derivatives [PDF]
Acta Crystallographica Section C Crystal Structure Communications, 2004 The structure of hydantoin (imidazolidine-2,4-dione), C3H4N2O2, has been determined from a twinned crystal. The two carbonyl bond lengths are nearly equal, even though one of them adjoins electron-donating NH groups to either side while the other is adjacent to only one.
Yu, Fang-Lei +2 more
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RESEARCHES ON HYDANTOINS. XXXVII. SYNTHESIS OF THE POLYPEPTIDE-HYDANTOIN—PHENYLALANYL-GLYCINE-HYDANTOIN.1 [PDF]
Journal of the American Chemical Society, 1916 n ...
Johnson, Treat B., Bates, Joseph S.
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Immunological Abnormalities and Hydantoins [PDF]
BMJ, 1972 Various immunological features were measured in 20 patients with epilepsy who had received prolonged treatment with hydantoins. Immunoglobulin A (IgA) was shown to be absent or low in five patients, β 1 C/A was low in 10 patients. Five patients showed negative reactions to skin tests, and two
P J, Grob, G E, Herold
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RESEARCHES ON HYDANTOINS. XXVII. SYNTHESIS OF HYDANTOIN-4-CARBOXAMIDE. [PDF]
Journal of the American Chemical Society, 1914 n ...
Johnson, Treat B., Nicolet, Ben H.
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3-(4-Chlorophenylsulfonyl)-8-methyl-1,3-diazaspiro[4.5]decane-2,4-dione
Acta Crystallographica Section E, 2009 In the title compound, C15H17ClN2O4S, the atoms in the hydantoin ring are coplanar (r.m.s. deviation = 0.006 Å). The crystal structure is stabilized by intermolecular N—H...O hydrogen bonds which link the molecules into ...
M. Kalim Kashif +3 more
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Pharmaceuticals, 2022 Epidermal Growth Factor Receptor (EGFR), its wild type and mutations L858R/T790M, is overexpressed in non-small cell lung cancer (NSCLC) patients and is considered an inevitable oncology target.
Moamen A. Hassanin +5 more
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The Pyroglutamate Hydantoin Rearrangement [PDF]
European Journal of Organic Chemistry, 2006 Abstract When a mixture of a pyroglutamate and an isocyanate in THF is treated with NaH, a ring transformation occurs leading to functionalised hydantoins. The novel reaction involves a ring‐closing ring‐opening sequence providing a new and straightforward access to an interesting class of heterocyclic compounds. Furthermore, starting
Nicolai Dieltiens +6 more
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Acta Crystallographica Section E: Crystallographic Communications, 2018 The structures of the hydrogen-bonded 1:1 co-crystal of chloranilic acid (systematic name: 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone) with ethyleneurea (systematic name: imidazolidin-2-one), C6H2Cl2O4·C3H6N2O, (I), and the 1:2 co-crystal of chloranilic
Kazuma Gotoh, Hiroyuki Ishida
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Synthesis of new 5-benzylidene-hydantoin esters
Journal of Chemical Research, 2022 Compounds containing a hydantoin moiety are found in several medicines in clinical use. In this research, ethyl- and methyl-[2-(5-benzylidene)-2,4-dioxoimidazolidin-3-yl]acetyl esters are successfully synthesized over four reaction steps using ...
Ndivhuwo R Tshiluka +3 more
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Trifluoromethylated Quinolone-Hydantoin Hybrids: Synthesis and Antibacterial Evaluation
Sci, 2022 A series of new trifluoromethyl-substituted quinolones and hydantoin hybrids has been synthesized and evaluated against Gram-positive bacterium (Staphylococcus aureus MTCC 96) and Gram-negative bacteria (Pseudomonas aeruginosa MTCC 441, Klebsiella ...
Akhil Mahajan +5 more
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