Collect. Czech. Chem. Commun. 1962, 27, 1037-1042
https://doi.org/10.1135/cccc19621037

Methoden zur Trennung von Naturstoffen V. Bestimmung von Morphin in Mohnkapselextrakten

P. Horák, J. Holubek, V. Bumba and Z. Čekan

Individual author index pages


Other CCCC articles of these authors

  • K. Šindelář, J. Holubek and M. Protiva
    Noncataleptic neuroleptics: New approaches to the synthesis of 2-chloro-10-(4-methylpiperazino) and -10-[4-(2-hydroxyethyl)piperazino]-10,11-dihydrodibenzo[b,f]thiepin
    1977, Vol. 42, Issue 12, pp. 3605–3627 [Abstract]
  • Z. J. Vejdělek, J. Holubek, M. Bartošová and M. Protiva
    4-(Aminomethyl)-s-hydrindacenes and 4,8-bis(aminomethyl)-s-hydrindacenes; Synthesis and pharmacological screening
    1977, Vol. 42, Issue 10, pp. 3094–3103 [Abstract]
  • K. Šindelář, J. Holubek, A. Dlabač, M. Bartošová and M. Protiva
    Noncataleptic potential neuroleptics: 2-Nitro and 2-hydroxy derivatives of 10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin
    1977, Vol. 42, Issue 7, pp. 2231–2239 [Abstract]
  • I. Červená, K. Šindelář, Z. Kopicová, J. Holubek, E. Svátek, J. Metyšová, M. Hrubantová and M. Protiva
    Fluorinated tricyclic neuroleptics: 6,7-Difluoro derivative of chlorprothixene and 2-fluoro-3-hydroxy derivative of octoclothepin
    1977, Vol. 42, Issue 6, pp. 2001–2017 [Abstract]
  • V. Zikán, M. Semonský, B. Kakáč, J. Holubek and K. Řežábek
    Reaction of β-4-alkoxybenzoyl-β(α)-bromoacrylic acids and of their esters with sodium methylate and ethylate
    1977, Vol. 42, Issue 5, pp. 1562–1570 [Abstract]
  • Z. J. Vejdělek, B. Kakáč, J. Holubek, E. Svátek, M. Bartošová and M. Protiva
    1,2,3,4,7,8-Hexahydro-6H-cyclopent[g]isoquinoline and N-substituted derivatives; Synthesis and pharmacological screening
    1977, Vol. 42, Issue 4, pp. 1200–1208 [Abstract]
  • K. Šindelář, J. Metyšová, J. Holubek, Z. Šedivý and M. Protiva
    Potential oral neuroleptics with protracted action: 8-Chloro-3,7-difluoro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin and further 3,7-substituted octoclothepin and dehydroclothepin derivatives
    1977, Vol. 42, Issue 4, pp. 1179–1199 [Abstract]
  • R. Smrž, J. O. Jílek, B. Kakáč, J. Holubek, E. Svátek, M. Bartošová and M. Protiva
    2(8)-Chloro-10(11)-(dimethylaminoalkyl)dibenzo[b,f]thiepins as potential CNS agents; Synthesis and pharmacological screening
    1976, Vol. 41, Issue 11, pp. 3420–3436 [Abstract]
  • V. Zikán, B. Kakáč, J. Holubek, H. Veselá and M. Semonský
    Some amides of β-4-pentoxybenzoyl-β-bromoacrylic acid
    1976, Vol. 41, Issue 10, pp. 3113–3118 [Abstract]
  • V. Zikán, M. Semonský, H. Škvorová, B. Kakáč, J. Holubek and H. Veselá
    Synthesis and saponification of ethyl esters of cis- and trans-β-4-alkoxybenzoyl-β- and -α-bromoacrylic acids
    1976, Vol. 41, Issue 10, pp. 3106–3112 [Abstract]
  • R. Smrž, J. O. Jílek, K. Šindelář, B. Kakáč, E. Svátek, J. Holubek, J. Grimová and M. Protiva
    5(or 4)-Arylthio-2-methylthiopyrimidines as potential intermediates in the synthesis of tricyclic pyrimido systems
    1976, Vol. 41, Issue 9, pp. 2771–2787 [Abstract]
  • K. Šindelář, B. Kakáč, J. Holubek, E. Svátek, M. Ryska, J. Metyšová and M. Protiva
    Potential metabolites of neuroleptics of the 10-piperazino-10,11-dihydrodibenzo[b,f]thiepin series: 2,3-Dihydroxy derivatives of perathiepin and octoclothepin and some related compounds
    1976, Vol. 41, Issue 5, pp. 1396–1415 [Abstract]
  • K. Šindelář, J. O. Jílek, V. Bártl, J. Metyšová, B. Kakáč, J. Holubek, E. Svátek, J. Pomykáček and M. Protiva
    Neuroleptics of the 10-piperazino-10,11-dihydrodibenzo[b,f]thiepin series and related substances: Piperazine-alkylated homologues of octoclothepin and methiothepin, 5,5-dimethyl-10,11-dihydro-5H-dibenzo[b,f]silepin analogue of perathiepin
    1976, Vol. 41, Issue 3, pp. 910–922 [Abstract]
  • I. Červená, J. Metyšová, E. Svátek, B. Kakáč, J. Holubek, M. Hrubantová and M. Protiva
    Potent neuroleptics with prolonged activity and diminished toxicity: 7,8-Dihalogeno-10-piperazinodibenzo[b,f]thiepins
    1976, Vol. 41, Issue 3, pp. 881–905 [Abstract]
  • K. Šindelář, A. Dlabač, B. Kakáč, E. Svátek, J. Holubek, Z. Šedivý, E. Princová and M. Protiva
    Noncataleptic potential neuroleptics: 2-Acetamido-, 2-amino- and 2-acetyl derivatives of 10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin
    1975, Vol. 40, Issue 9, pp. 2649–2666 [Abstract]
  • K. Šindelář, A. Dlabač, J. Metyšová, B. Kakáč, J. Holubek, E. Svátek, Z. Šedivý and M. Protiva
    Potential antipsychotics: 2-Methoxy, 2-methylthio-, 2-(dimethylsulfamoyl)- and 2-trifluoromethyl-10-piperazinodibenzo[b,f]thiepins
    1975, Vol. 40, Issue 6, pp. 1940–1959 [Abstract]
  • Z. Veselý, J. Holubek, H. Kopecká and J. Trojánek
    Thermal decomposition of 10,11-methylenedioxy-3,4,12-trimethoxy-7,8,13,13a-tetrahydro-5H-isoindolo[1,2-b] [3]benzazepine methohydroxide
    1975, Vol. 40, Issue 5, pp. 1403–1410 [Abstract]
  • J. Trojánek, Z. Koblicová, Z. Veselý, V. Suchan and J. Holubek
    Thermal decomposition of narceine imide methohydroxide
    1975, Vol. 40, Issue 3, pp. 681–694 [Abstract]
  • K. Šindelář, J. Metyšová, B. Kakáč, J. Holubek, E. Svátek, J. O. Jílek, J. Pomykáček and M. Protiva
    8-Acyl derivatives of 10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin
    1974, Vol. 39, Issue 8, pp. 2099–2114 [Abstract]
  • K. Šindelář, B. Kakáč, E. Svátek, J. Holubek, M. Rajšner, J. Metyšová and M. Protiva
    9-Chloro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin and some related synthetic experiments
    1974, Vol. 39, Issue 1, pp. 333–354 [Abstract]
  • K. Šindelář, M. Rajšner, I. Červená, V. Valenta, J. O. Jílek, K. Kakáč, J. Holubek, E. Svátek, F. Mikšík and M. Protiva
    Neurotropic and psychotropic agents. LXVII. 1-[4,4-Bis(4-fluorophenyl)butyl]-4-hydroxy-4-(3-trifluoromethyl-4-chlorophenyl)piperidine and related compounds: New synthetic approaches
    1973, Vol. 38, Issue 12, pp. 3879–3901 [Abstract]
  • K. Šindelář, B. Kakáč, E. Svátek, J. Holubek, J. Metyšová, M. Hrubantová and M. Protiva
    Neurotropic and psychotropic agents. LXVI. 6,8-Dichloro- and 6,9-dichloro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin
    1973, Vol. 38, Issue 11, pp. 3321–3338 [Abstract]
  • M. Kuchař, B. Kakáč, O. Němeček, E. Kraus and J. Holubek
    The kinetics of Wittig's reaction of α-ethoxycarbonylalkylidenephosphoranes with aromatic aldehydes
    1973, Vol. 38, Issue 2, pp. 447–454 [Abstract]
  • J. O. Jílek, K. Šindelář, J. Pomykáček, O. Horešovský, K. Pelz, E. Svátek, B. Kakáč, J. Holubek, J. Metyšová and M. Protiva
    Neurotropic and psychotropic compounds. LV. New syntheses of 8-chloro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin and related compounds
    1973, Vol. 38, Issue 1, pp. 115–131 [Abstract]
  • M. Protiva, V. Seidlová, E. Svátek, B. Kakáč and J. Holubek
    Benzocycloheptenes and heterocyclic analogues as potential drugs. IV. Amines derived from 4-phenyl-8-chloro-2,3,4,5-tetrahydro-1-benzoxepin
    1972, Vol. 37, Issue 6, pp. 2081–2090 [Abstract]
  • J. O. Jílek, V. Seidlová, K. Pelz, B. Kakáč, J. Holubek, E. Svátek, Z. Šedivý and M. Protiva
    Neurotropic and psychotropic compounds. XLVIII. Several derivatives of phenanthrene, acenaphthene; anthracene and naphthalene
    1971, Vol. 36, Issue 9, pp. 3300–3313 [Abstract]
  • J. O. Jílek, J. Holubek, J. Pomykáček and M. Protiva
    Neurotropic and psychotropic compounds. XLVI. Several derivatives of cyclohexylphenyl sulfide
    1971, Vol. 36, Issue 8, pp. 2824–2830 [Abstract]
  • Z. J. Vejdělek, V. Trčka, M. Vaněček, B. Kakáč and J. Holubek
    Ganglionic blocking agents. XV. Synthesis and activity of some tertiary hexylamines
    1970, Vol. 35, Issue 9, pp. 2810–2830 [Abstract]
  • I. Bartošek and Z. Čekan
    Oxidation of 17β-hydroxyandrostane derivatives by 17β-hydroxysteroid dehydrogenase from guinea-pig liver
    1969, Vol. 34, Issue 6, pp. 1829–1831 [Abstract]
  • Z. Veselý, J. Holubek and J. Trojánek
    Steroid derivatives. LVII. Oxidation of cyclic ethylenedithioketals of androstane series
    1968, Vol. 33, Issue 12, pp. 4047–4053 [Abstract]
  • B. Pelc, J. Holubek, T. Wittstruck and E. Caspi
    Steroid derivatives. LIV. Friedel-Crafts acetylation of 3-acetoxy-1-methylestra-1,3,5(10),6-tetraenes
    1968, Vol. 33, Issue 4, pp. 1131–1142 [Abstract]
  • Z. Čekan, M. Tichá and I. Bartošek
    Hydrolysis of esters of androstane derivatives by rat liver homogenate relationship between the rate of hydrolysis and structure
    1966, Vol. 31, Issue 5, pp. 2068–2072 [Abstract]
  • B. Pelc, J. Hodková and J. Holubek
    Steroid derivatives. XXXVIII. Preparation of 1α,2α-oxides of androstane derivatives and their reactions
    1966, Vol. 31, Issue 3, pp. 1363–1370 [Abstract]
  • O. Exner and J. Holubek
    Acyl derivatives of hydroxylamine. XI. Study of hydroxamic acids dissociation by means of UV-spectroscopy
    1965, Vol. 30, Issue 4, pp. 940–951 [Abstract]
  • H. Bočková, J. Holubek and Z. Čekan
    Inhaltsstoffe des Ölbaums (Olea europea L.)
    1964, Vol. 29, Issue 6, pp. 1484–1491 [Abstract]
  • J. Trojánek, O. Štrouf, J. Holubek and Z. Čekan
    Über Alkaloide IX. Über die Struktur von Vincamin
    1964, Vol. 29, Issue 2, pp. 433–446 [Abstract]
  • J. Pitra, J. Reichelt and Z. Čekan
    Methoden zur Trennung von Naturstoffen X. Adsorptionseigenschaften von hydratisiertem Silikagel
    1963, Vol. 28, Issue 11, pp. 3072–3078 [Abstract]
  • J. Pitra and Z. Čekan
    Methoden zur Trennung von Naturstoffen VIII. Ableitung von Systemen für die Gegenstromverteilung
    1963, Vol. 28, Issue 9, pp. 2303–2309 [Abstract]
  • S. Heřmánek, V. Schwarz and Z. Čekan
    Methoden zur Trennung von Naturstoffen VII. Beziehung zwischen Substanz und Lösungsmittel bei der Chromatographie an Aluminiumoxyd
    1963, Vol. 28, Issue 8, pp. 2031–2039 [Abstract]
  • J. Volke and J. Holubek
    Polarography of heterocyclic aromatic compounds. XV. Products of polarographic reduction of 4-cyanopyridine
    1963, Vol. 28, Issue 6, pp. 1597–1599 [Abstract]
  • V. Procházka, Z. Čekan and R. B. Bates
    On terpenes. CLI. Structure of globicin, a guaianolide from Matricaria globifera (THUNB.) DRUCE
    1963, Vol. 28, Issue 5, pp. 1202–1210 [Abstract]
  • J. Pitra, J. Moural and Z. Čekan
    Herzwirksame Glykoside V. Reaktion der 14,16β-Dihydroxycardenolide mit Thionylchlorid und Konstitutionsnachweis von 16β-Hydroxystrophanthidin (Strophadogenin)
    1962, Vol. 27, Issue 12, pp. 2985–2988 [Abstract]
  • J. Trojánek, O. Štrouf, K. Kavková and Z. Čekan
    Über Alkaloide VI. Vincaminin und Vincinin, zwei neue Alkaloide aus Vinca minor L.
    1962, Vol. 27, Issue 12, pp. 2801–2807 [Abstract]
  • J. Volke and J. Holubek
    Polarography of heterocyclic aromatic compounds. XIV. Reduction of ethylenic bond in 1,2-dipyridylethylenes
    1962, Vol. 27, Issue 8, pp. 1777–1789 [Abstract]
  • Z. Čekan, J. Pitra and V. Procházka
    Separation methods for natural products. II. Enriched diamond separation and double withdrawal
    1962, Vol. 27, Issue 4, pp. 832–842 [Abstract]
  • V. Procházka, J. Pitra and Z. Čekan
    Separation methods for natural products. I. New countercurrent distribution procedure
    1962, Vol. 27, Issue 4, pp. 823–831 [Abstract]
  • J. Holubek and J. Volke
    Polarography of heterocyclic aromatic compounds. XIII. Polarographic fission of carbon-halogen bonds in monohalogenopyridines
    1962, Vol. 27, Issue 3, pp. 680–692 [Abstract]
  • S. Heřmánek, V. Schwarz and Z. Čekan
    Methods of separation of natural products. III. Measurement of activity of alumina by means of thin layer chromatography
    1961, Vol. 26, Issue 12, pp. 3170–3173 [Abstract]
  • J. Trojánek, H. Komrsová, J. Pospíšek and Z. Čekan
    Über N-alkylcamphidine
    1961, Vol. 26, Issue 11, pp. 2921–2932 [Abstract]
  • J. Trojánek, J. Pospíšek and Z. Čekan
    Über alkylderivate der stereoisomeren 2-aminocamphane
    1961, Vol. 26, Issue 10, pp. 2602–2611 [Abstract]
  • B. Pelc, S. Heřmánek and J. Holubek
    Über steroid-derivate XIII. Zur dehydrobromierung von 2,4-dibrom-3-keto-5α-androstan-derivaten in dimethylformamid
    1961, Vol. 26, Issue 7, pp. 1852–1861 [Abstract]
  • S. Heřmánek, V. Schwarz and Z. Čekan
    Steroidderivate XII. Chromatographie neutraler steroide an einer dünnen aluminiumoxydschicht
    1961, Vol. 26, Issue 6, pp. 1669–1679 [Abstract]
  • J. Pitra and Z. Čekan
    Herzwirksame glykoside III. Cardenolide des adonisröschens (Adonis vernalis L.)
    1961, Vol. 26, Issue 6, pp. 1551–1558 [Abstract]
  • J. Trojánek, K. Kavková, O. Štrouf and Z. Čekan
    Über Alkaloide IV. Über die Isolierung von Vincin, eines neuen Alkaloids aus Vinca minor L.
    1961, Vol. 26, Issue 3, pp. 867–873 [Abstract]
  • J. Holubek and J. Volke
    Polarographie aromatischer heterocyclischer verbindungen X. Polarographische studie des systems 2,2'-pyridoin und 2,2'-pyridil
    1960, Vol. 25, Issue 12, pp. 3292–3305 [Abstract]
  • J. Holubek and J. Volke
    Polarography of aromatic heterocyclic compounds. IX. Polarographic reducibility of isomeric nitropyridines
    1960, Vol. 25, Issue 12, pp. 3286–3291 [Abstract]
  • Z. Čekan, V. Procházka, V. Herout and F. Šorm
    On terpenes. CXV. Isolation of globicin, a guaianolide from Matricaria globifera (THUNB.) DRUCE
    1960, Vol. 25, Issue 10, pp. 2553–2558 [Abstract]
  • J. Trojánek, O. Štrouf, K. Kavková and Z. Čekan
    Über alkaloide III. Neue alkaloide aus immergrün Vinca minor L.
    1960, Vol. 25, Issue 8, pp. 2045–2048 [Abstract]
  • P. Horák
    Bestimmung cardiotonischer glykoside mit hilfe des xanthydrol-reagenz
    1960, Vol. 25, Issue 7, pp. 1974–1977 [Abstract]
  • Z. Čekan, V. Procházka, V. Herout and F. Šorm
    On terpenes. CI. Isolation and constitution of matricarin, another guaianolide from camomile (Matricaria chamomilla L.)
    1959, Vol. 24, Issue 5, pp. 1554–1557 [Abstract]
  • J. Holubek and J. Volke
    Polarographische studie der spaltung des narcotolins
    1959, Vol. 24, Issue 5, pp. 1436–1443 [Abstract]
  • J. Pitra, H. Kolářová and Z. Čekan
    Ein neues system für die papierchromatographie kardiotonischer glykoside
    1959, Vol. 24, Issue 3, pp. 1011–1013 [Abstract]
  • J. Trojánek, J. Hoffmannová, O. Štrouf and Z. Čekan
    Vincaminorin, ein neues alkaloid des immergrüns (Vinca minor L.)
    1959, Vol. 24, Issue 2, pp. 526–529 [Abstract]
  • Z. Čekan, V. Herout and F. Šorm
    Über terpene LXXX. Die struktur von matricin, ein guajanolid aus der kamille (Matricaria chamomilla L.)
    1957, Vol. 22, Issue 6, pp. 1921–1929 [Abstract]
  • Z. Čekan and V. Herout
    Über pflanzenstoffe IV. Die isolierung von 5-oxy-3,6,7,3',4'-pentamethoxyflavon aus wermut (Artemisia absinthium L.)
    1956, Vol. 21, Issue 1, pp. 79–83 [Abstract]
  • Z. Čekan, V. Herout and F. Šorm
    On terpenes. LXII. Isolation and properties of the pro-chamazulene from Matricaria chamomilla L., A further compound of the guaianolide group
    1954, Vol. 19, Issue 4, pp. 798–804 [Abstract]
  • F. Šorm, Z. Čekan, V. Herout and H. Rašková
    Isolation of spasmolytically active substance from Matricaria chamomilla L.
    1953, Vol. 18, Issue 1, pp. 127–130 [Abstract]