Zobrazeno 1 - 10
of 632
pro vyhledávání: '"A.A. Akhrem"'
Publikováno v:
Journal of Chromatography A. 166:123-131
A rapid procedure is described for methyl glycoside derivatization for gas— liquid chromatographic analysis. Re-N-acetylation is carried out after the trimethylsilylation step directly in a gas chromatographic column by injecting acetic anhydride t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47a7145dd0e9ce243a6f8ac56a00d1bc
https://doi.org/10.1016/s0021-9673(00)92255-6
https://doi.org/10.1016/s0021-9673(00)92255-6
Publikováno v:
Journal of Chromatography A. 176:207-216
Columns packed with 0.3–0.4% OV-225 on Chromosorb surface modified wit high-molecular-weight polythylene glycol have been developed for the gas chromatographic analysis of methylated sugar derivatives. These columns provided a better separation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7452cdaa5e3b8a2b398a1fd09073bf40
https://doi.org/10.1016/s0021-9673(00)85652-6
https://doi.org/10.1016/s0021-9673(00)85652-6
Publikováno v:
Russian Chemical Reviews. 44:398-412
Information on reactions catalysed by mono-oxygenases is summarised and classified. The composition and properties of these enzymes are considered, together with the kinetics and the mechanism of their action in the hydroxylation of aliphatic and aro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbb86c91d477d6b77f5e1b0bdd63655a
https://doi.org/10.1070/rc1975v044n05abeh002350
https://doi.org/10.1070/rc1975v044n05abeh002350
Publikováno v:
Polymer Science U.S.S.R.. 31:2556-2563
Mass transfer processes in a mass-exchange sorption device packed with a hydrophilic biospecific antiproteinase sorbent having a matrix almost ideally comparable with a blood and other biological liquids on which the proteolytic enzyme (proteinase) i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f160f773aa774a780a5e8f63e1e7c09e
https://doi.org/10.1016/0032-3950(89)90277-3
https://doi.org/10.1016/0032-3950(89)90277-3
Autor:
Adamovich Tb, V.I. Vasilevsky, Vadim L. Chashchin, T.M. Berikbaeva, Lapko Vn, A.A. Akhrem, Vladimir M. Shkumatov
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 791:375-383
Cytochrome P-450scc consists of two domains linked with a short loop of the polypeptide chain; under hydrolysis by trypsin the domains retain their associated state due to rigid noncovalent interactions. A partial separation of the domains by gel-chr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::553ae803080d233011a0a82b63ea0ad8
https://doi.org/10.1016/0167-4838(84)90350-9
https://doi.org/10.1016/0167-4838(84)90350-9
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 790:259-267
Selective chemical modification of adrenocortical cytochrome P-450scc, responsible for key stages of steroid biogenesis, with tetranitromethane has been carried out. Nitration of the cytochrome P-450scc tyrosine residues results in heme protein inact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a98d7372bddf3eaacca1c5a5ceffe15e
https://doi.org/10.1016/0167-4838(84)90030-x
https://doi.org/10.1016/0167-4838(84)90030-x
Publikováno v:
Bioorganic Chemistry. 4:307-316
The kinetics of co-oxidation of cyclohexane and ferrous chloride by molecular oxygen in methanol in the temperature range 25–50°C has been studied. The total yield of the reaction products, cyclohexanol and cyclohexanone, equals about 25% of the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::256b41e3cd251579810c3e0f9a49036e
https://doi.org/10.1016/0045-2068(75)90042-5
https://doi.org/10.1016/0045-2068(75)90042-5
Publikováno v:
Tetrahedron. 29:1433-1439
The optical properties of pregnenes containing different substituents at C-17 (—SCN, —SAc, —SC(CH 3 ) 2 O—, —Br, —OAc, —N 3 ) have been investigated with the help of the CD spectra. It is shown that the sign and value of the Cotton effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::341e060df8396d2c52c4a0c3cc0c9fc1
https://doi.org/10.1016/s0040-4020(01)83167-7
https://doi.org/10.1016/s0040-4020(01)83167-7
Publikováno v:
Tetrahedron. 25:4737-4742
Opening of the oxide cycle in stereoisomeric 16,17-oxides of dehydropregnenolone caused by the action of acetic acid in the presence of diphenylhydrazine is strictly selective and takes place at C(17) only. With the 16α,17α-oxide cis-opening is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d53938a72fc6f5dc58133995c806d2d4
https://doi.org/10.1016/s0040-4020(01)83014-3
https://doi.org/10.1016/s0040-4020(01)83014-3
Autor:
A.A. Akhrem, A. V. Kamernitzky
Publikováno v:
Tetrahedron. 18:705-750
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42cf827e2f38746913707c1a82da9a3a
https://doi.org/10.1016/s0040-4020(01)92724-3
https://doi.org/10.1016/s0040-4020(01)92724-3