Results 71 to 80 of about 520 (121)
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Attempted synthesis of 2,4‐ and 1,3‐benzodiazepinones
Journal of Heterocyclic Chemistry, 1975AbstractThe cyclodehydration reaction performed upon α‐acylamino carboxamides is known to constitute a facile synthetic approach to five‐membered heterocyclic systems. Attempts to prepare 2,4‐ and 1,3‐benzodiazepinone derivatives (VI, XIX) of potential C.N.S. Activity using such methods, proved unsuccessful. A new triazine system (X) which was prepared
Uri Golik, William Taub
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ChemInform, 1987
AbstractThe benzodiazepinones (IV) are obtained by acylation and subsequent cyclization of the diamines (Ia) and (Ib).
K. MATSUO +3 more
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AbstractThe benzodiazepinones (IV) are obtained by acylation and subsequent cyclization of the diamines (Ia) and (Ib).
K. MATSUO +3 more
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Auranthine, a new benzodiazepinone metabolite of Penicillium aurantiogriseum
Journal of the Chemical Society, Perkin Transactions 1, 1986A novel metabolite, auranthine, has been isolated from sporing cultures of Penicillium aurantiogriseum and its structure, 6,7,7a,8-tetrahydroquinazolino[3′,2′:1,6]pyrido[2,3-b][1,4]benzodiazepine-9,16-dione comprising anthranilate and glutamine moieties, has been elucidated from spectral evidence and biosynthetic reasoning.
Stephanie E. Yeulet +4 more
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Chemischer Informationsdienst, 1985
AbstractAusgehend vom Hydroxyisobuttersäureester (Ia) und dem Aminosäureester (Ib) werden, wie im Formelschema angegeben, die anellierten Diazepin‐Derivate (IX) hergestellt.
K. MATSUO, K. TANAKA
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AbstractAusgehend vom Hydroxyisobuttersäureester (Ia) und dem Aminosäureester (Ib) werden, wie im Formelschema angegeben, die anellierten Diazepin‐Derivate (IX) hergestellt.
K. MATSUO, K. TANAKA
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Direct liquid chromatographic separation of benzodiazepinone enantiomers
Journal of Chromatography A, 1984Abstract The enantiomers of 46 3-substituted 5-phenyl-1,3-dihydro(2H)1,4-benzodiazepin-2-ones, diazepam (Valium®) analogues, have been chromatographically separated on chiral stationary phases derived from (R)-phenyl-glycine or (S)-leucine. Both analytical and preparative scale separations have been effected.
William H. Pirkle, Athanasios Tsipouras
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ChemInform Abstract: Dihydro‐1,4‐benzodiazepinones and ‐thiones
ChemInform, 1991AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A. WALSER, R. I. FRYER
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Journal of Chromatography A, 1992
The isolation of milligram amounts of the enantiomers of a benzodiazepinone derivative was performed on an analytical cellulose tribenzoate-based column by multiple repetitive injections. An enantiomeric purity greater than 98% was required. First, an analytical method was developed to maximize the resolution by adjusting the mobile phase composition ...
A, Katti, P, Erlandsson, R, Däppen
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The isolation of milligram amounts of the enantiomers of a benzodiazepinone derivative was performed on an analytical cellulose tribenzoate-based column by multiple repetitive injections. An enantiomeric purity greater than 98% was required. First, an analytical method was developed to maximize the resolution by adjusting the mobile phase composition ...
A, Katti, P, Erlandsson, R, Däppen
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Metal-free oxidative ring contraction of benzodiazepinones: an entry to quinoxalinones
Organic & Biomolecular Chemistry, 2017Herein is reported a practical method for the construction of 3-benzoylquinoxalinones from benzodiazepinones in the presence of DMSO which serves both as a solvent and an oxidant.
Hasan Mtiraoui +5 more
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