Fluorescence reaction of scandium with 5-hydroxyflavone, 5-hydroxyisoflavone and their derivatives
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منابع مشابه
Synthesis of 5-keto-5-oxime derivatives of milbemycins and their activities against microfilariae.
Starting from milbemycin D (1), milbemycin A4 (2) and milbemycin A3 (3), a series of 5-keto-5-oxime derivatives were synthesized by selective oximation at the alpha,beta-conjugated carbonyl function of the 5-ketomilbemycins (4-6). The activities of the synthesized compounds were studied in dogs naturally infested with microfilariae of Dirofilaria immitis. The 5-keto-5-oximes of milbemycin D (7)...
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Reactions of benzoylpyruvate with a mixture of aromatic aldehydes and 5-amino-1,3,4-thiadizole-2-thiol in a 1:1:1 molar ratio, afforded 5-(5-aryl-4-benzoyl-3-hydroxy-2-oxo-2,5-dihydro-1H-pyrrol-1-yl)-1,3,4-thiadizole-2-thiols (3a-c). The structure of the resulted products was confirmed by determination of the melting point and spectrophotometric techniques such as IR and 1H-NMR spectroscopy.
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The individual diastereomers of trimer A2'p5'A2'p(s)5'A, containing one phosphorothioate linkage, were prepared via a modified hydroxybenzotriazole phosphotriester approach. The 5'-phosphorylated derivatives of the latter compounds were obtained after phosphorylation with a 6-trifluoromethyl-1-benzotriazolyl activated phosphoromorpholidate.
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The biological versatility of aristeromycin (carbocyclic adenosine) is limited by accompanying cytotoxicity caused ostensibly by the intracellular formation of its 5'-nucleotide derivatives. Aristeromycin derivatives that offered steric interference to this transformation at the C-5' center were sought. This paper describes the facile stereospecific synthesis, where necessary, of such C-5'-meth...
متن کاملChapter 5: Derivatives and Integration
2 Numerical and Symbolic Integration 2 2.1 Cubature Formulae Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 Constructing Cubature Formulae . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2.1 Interpolatory Cubature Formulae . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2.2 Ideal Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1978
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.27.12_788