Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Bohumil Proksa"'
Autor:
Bohumil Proksa, Ruž ena Čižmáriková
Publikováno v:
Analytica Chimica Acta. 434:75-79
β-Adrenolytics, derivatives of 4-(3-isobutylamino-2-hydroxypropoxy)-3-alkoxymethyl)acetophenone, synthesized from 4-hydroxyacetophenone and their enantiomers were separated by CE in presence of cyclodextrins or maltodextrin. Addition of maltodextrin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::397dca3c74ea02bc45d28a08bccfaef3
https://doi.org/10.1016/s0003-2670(01)00804-2
https://doi.org/10.1016/s0003-2670(01)00804-2
Autor:
Bohumil Proksa
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 20:179-183
Separation of morphine and its oxidation products (10-S-hydroxymorphine, pseudomorphine and morphine N-oxide) by capillary zone electrophoresis in Tris-borate buffer in the presence of cyclodextrins was studied. Pyridoxine was used as an internal sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c52c298dfb9be4bcaf928ec3747c7eed
https://doi.org/10.1016/s0731-7085(99)00015-1
https://doi.org/10.1016/s0731-7085(99)00015-1
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 140:485-487
A new compound was isolated from the reaction mixture after O-demethylation of 6-O-acetyl-10α-acetoxycodeine with boron tribromide. The structure of this compound, 10α-hydroxy-β-isomorphine, was elucidated by spectral data, and its spatial arrange
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49f5fb7729c922f94c87a25029caec77
https://doi.org/10.1007/s00706-008-0077-3
https://doi.org/10.1007/s00706-008-0077-3
Publikováno v:
Phytochemistry. 48:1161-1164
The yellow pigment, named neosartorin was isolated from the mycelium of Neosartorya fischeri. Its structure, representing an asymmetric ergochrome, was deduced from spectral data, mainly NMR experiments.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd8ac055bf1058d707a5cacc8a56fe4a
https://doi.org/10.1016/s0031-9422(98)00169-1
https://doi.org/10.1016/s0031-9422(98)00169-1
Publikováno v:
Monatshefte f�r Chemie - Chemical Monthly. 125:707-711
[2E,7E]-4,9-dioxo-2,7-decadienoic, [2E,7E]-9-oxo-2,7-decadienoic and [2Z,4E]-2-methyl-2,4-hexadienoic acids were isolated from the filtrate ofPenicillium vermiculatum Dang. The presence of [2E,2′E,7S,7′E]-4,9-dioxo-7-(4′,9′-dioxo-2′,7′-de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07d33df8f0dc21ed3f5e4272e08be94d
https://doi.org/10.1007/bf01277630
https://doi.org/10.1007/bf01277630
Publikováno v:
Journal of Chromatography A. 665:185-190
Thin-layer chromatography on silica gel plates with detection at 254 and 365 nm, spraying with vanillin-sulphuric acid, ethanol ammonia, aqueous iron(III) chloride or ethanolic potassium hydroxide is suggested for rapid detection of (−)-vermiculin,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ccfa54605326574f946aac4c268742d
https://doi.org/10.1016/0021-9673(94)87047-0
https://doi.org/10.1016/0021-9673(94)87047-0
Publikováno v:
Biotechnology Letters. 15:1237-1242
Biosynthesis of 1-acetyl-β-carboline, an enzyme inhibitor, in S. kasugaensis SK-619 was regulated by quality of the carbon source and by addition of organic acids into medium. Variation in phosphate concentration also affected production of this car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c13f5b4fd02d47a12136071e7419c793
https://doi.org/10.1007/bf00130304
https://doi.org/10.1007/bf00130304
Publikováno v:
Folia Microbiologica. 38:299-302
The synergistic effect of kasugamycin and thiolutin as biopesticides with some synthetic pesticides (benlate, euparen, dithan and pentachlorophenol) toward wood-damaging fungiCladosporium sphaerospermum, Ceratocystis pilifera andAureobasidium pullula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ba0420bf91f07145630ff2ef9ea13fc
https://doi.org/10.1007/bf02898598
https://doi.org/10.1007/bf02898598
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 124:425-430
2-Aminothiophenol (1) reacts with 3-chloro-2,4-pentanedione (2) in the presence of pyridine to form 2-acetyl-3-methyl-4H-1,4-benzothiazine (3) in high yields. Reaction of3 with hydrazine gives 4-(2′-aminophenylthio)-3,5-dimethylpyrazole (5). Conden
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44c59465053af7670d3b7494fc0d4340
https://doi.org/10.1007/bf00814138
https://doi.org/10.1007/bf00814138
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dce959b52014d52924632da67214dbb2
https://doi.org/10.1002/chin.199222246
https://doi.org/10.1002/chin.199222246