Collect. Czech. Chem. Commun.
1974, 39, 1914-1924
https://doi.org/10.1135/cccc19741914
Synthesis of 4,5-cyclo-A-homo-B-norcholestane derivatives
J. Joska, J. Fajkoš and M. Buděšínský
Individual author index pages
Other CCCC articles of these authors
- V. Šanda, J. Fajkoš and J. Protiva
Microbial oxygenation of B-norsteroids with Beauveria bassiana
1977, Vol. 42, Issue 12, pp. 3646–3653 [Abstract] - J. Protiva, M. Buděšínský and A. Vystrčil
Unusual course of photolysis of 3β-acetoxy-28-nitrosyloxylupane. Synthesis of triterpenic N-oxides and hydroxamic acids
1977, Vol. 42, Issue 4, pp. 1220–1228 [Abstract] - J. Joska and J. Fajkoš
4,5-Cyclo-A-homo-B-norsteroid androgen analogues
1977, Vol. 42, Issue 3, pp. 1044–1052 [Abstract] - J. Joska and J. Fajkoš
Synthesis of 2-oxygenated 4,5-cyclo-A-homo-B-norcholestane derivatives
1977, Vol. 42, Issue 3, pp. 1035–1043 [Abstract] - V. Černý, A. Trka, J. Kohoutová, J. Smolíková and M. Buděšínský
Base-catalyzed autoxidation of 3α,5-cyclo-5α-cholestan-6-one and 3α,5-cyclo-5α-cholestan-7-one
1976, Vol. 41, Issue 9, pp. 2788–2811 [Abstract] - I. Frič, M. Buděšínský, F. Brtník and M. Zaoral
The conformation of C-terminal tripeptides of neurohypophysial hormones. Proton magnetic resonance and circular dichroic studies
1976, Vol. 41, Issue 6, pp. 1704–1713 [Abstract] - J. Fajkoš and J. Joska
19-Hydroxy steroids substituted in position 7
1976, Vol. 41, Issue 3, pp. 923–927 [Abstract] - L. Kohout and J. Fajkoš
Synthesis of 6β,7aβ-cyclo-B-homo-5α-cholest-2-ene
1975, Vol. 40, Issue 12, pp. 3924–3931 [Abstract] - J. Klinot, M. Hořejší, M. Buděšínský and A. Vystrčil
Conformation of the ring A in 2,3-disubstituted 24-nortriterpenes and the stereochemistry of the opening of 2β,3β-epoxides
1975, Vol. 40, Issue 12, pp. 3712–3727 [Abstract] - T. Trnka, M. Černý, M. Buděšínský and J. Pacák
The synthesis of 3-amino-3-deoxy-D-glucose (kanosamine) and its 1,6-anhydro derivative conformation of amino derivatives of 1,6-anhydro-β-D-hexopyranoses
1975, Vol. 40, Issue 10, pp. 3038–3045 [Abstract] - M. Černý, O. Juláková, J. Pacák and M. Buděšínský
Isomerization of 2-amino-1,6 : 3,4-dianhydro-2-deoxy-β-D-galactopyranose to 1,6-anhydro-2,3-dideoxy-2,3-epimino-β-D-gulopyranose in alkaline medium
1975, Vol. 40, Issue 7, pp. 2116–2119 [Abstract] - A. Vystrčil, V. Křeček and M. Buděšínský
Photooxidation of (20R)- and (20S)-29-lupanol derivatives
1975, Vol. 40, Issue 5, pp. 1593–1603 [Abstract] - J. Klinot, M. Buděšínský, M. Kliment, S. Hilgard and A. Vystrčil
Conformation of ring A of 1,2-disubstituted triterpenes. Geometry and stability of the boat form
1975, Vol. 40, Issue 5, pp. 1426–1440 [Abstract] - A. Kasal and M. Buděšínský
Reaction of 5-bromo-6β-chloro-5α-cholestan-3β-ol with silver salts
1975, Vol. 40, Issue 4, pp. 1231–1239 [Abstract] - Pavel Kočovský, L. Kohout and J. Fajkoš
5,7-Cyclo-B-homopregnane derivatives with an oxygen function in position 17α
1975, Vol. 40, Issue 2, pp. 468–474 [Abstract] - J. Klinot, M. Buděšínský, S. Hilgard and A. Vystrčil
The effect of 8β-methyl group on the conformation of the ring of a 2,3-disubstituted triterpenes
1974, Vol. 39, Issue 12, pp. 3741–3755 [Abstract] - A. Vystrčil, V. Křeček and M. Buděšínský
Elimination reaction of the angular hydroxymethyl group of the lupane skeleton
1974, Vol. 39, Issue 11, pp. 3131–3143 [Abstract] - M. Černý, M. Kollmann, J. Pacák and M. Buděšínský
Preparation of branched-chain hexoses by reaction of 1,6-anhydro-2,4-di-O-p-toluenesulfonyl-β-D-hexopyranos-3-uloses with Grignard reagents
1974, Vol. 39, Issue 9, pp. 2507–2519 [Abstract] - A. Vystrčil, V. Křeček and M. Buděšínský
Elimination reactions on angular hydroxymethyl group of the lupane skeleton
1974, Vol. 39, Issue 9, pp. 2494–2506 [Abstract] - A. Mironowicz, L. Kohout and J. Fajkoš
5,7-Cyclo-B-homopregnane derivatives with an oxygen function in position 21
1974, Vol. 39, Issue 7, pp. 1780–1786 [Abstract] - J. Fajkoš and J. Joska
5,7-Cyclosteroids with an oxygen function in position 1
1974, Vol. 39, Issue 7, pp. 1773–1779 [Abstract] - L. Kohout and J. Fajkoš
Synthesis and some reactions of the epimeric 5,7α-cyclo-B-homo-5α-cholestan-4-ols
1974, Vol. 39, Issue 6, pp. 1613–1620 [Abstract] - L. Kohout and J. Fajkoš
Acetolyses of the epimeric 4-methanesulphonyloxy-5,7β-cyclo-B-homo-5β-cholestanes
1974, Vol. 39, Issue 6, pp. 1601–1612 [Abstract] - V. Šanda, J. Fajkoš and F. Šorm
Synthesis of B-norcortisol
1974, Vol. 39, Issue 5, pp. 1377–1381 [Abstract] - Ž. Procházka, M. Buděšínský and P. Prekajski
Microbial oxygenation of 6β-hydroxy-3α,5-cyclo-5α-androstan-17-one with Rhizopus nigricans
1974, Vol. 39, Issue 4, pp. 982–992 [Abstract] - J. Pacák, P. Drašar, D. Štropová, M. Černý and M. Buděšínský
Syntheses with anhydro sugars. XVIII. Aminodideoxyfluorine derivatives of D-glucose
1973, Vol. 38, Issue 12, pp. 3936–3939 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. CLVI. 6-Methylanalogues of B-norsteroids
1973, Vol. 38, Issue 7, pp. 2121–2131 [Abstract] - J. Vičar, M. Buděšínský and K. Bláha
Amino acids and peptides. CXIV. Proton magnetic reasonance studies of cyclodipeptides containing pipecolic acid, proline and/or 2-azetidinecarboxylic acid
1973, Vol. 38, Issue 7, pp. 1940–1956 [Abstract] - L. Kohout and J. Fajkoš
On steroids. CLIV. B-Homosteroids. IX. The epimeric 5,7-cyclo-B-homoandrostane derivatives
1973, Vol. 38, Issue 5, pp. 1415–1427 [Abstract] - J. Fajkoš, M. Buděšínský and J. Joska
On steroids. CLIII. 5,7-Cyclosteroids. VII. The epimeric 1,2-epoxides of the 5,7β-cyclosteroid series
1973, Vol. 38, Issue 5, pp. 1406–1414 [Abstract] - J. Joska, Ž. Procházka, J. Fajkoš and F. Šorm
On steroids. CLII. Microbial oxygenation of B-norsteroids
1973, Vol. 38, Issue 5, pp. 1398–1405 [Abstract] - L. Kohout and J. Fajkoš
On steroids. CLI. B-Homosteroids. VIII. Solvolytic reactions of the epimeric 3-methanesulphonyloxy-5,7-cyclo-B-homosteroids
1973, Vol. 38, Issue 3, pp. 913–928 [Abstract] - A. Kurek, L. Kohout, J. Fajkoš and F. Šorm
On steroids. CL. Bromo and cyano derivatives of 5α-cholestan-3β-ol
1973, Vol. 38, Issue 2, pp. 583–591 [Abstract] - V. Černý, M. Buděšínský and F. Šorm
On steroids. CXLVIII. Reactions and stereochemistry of some 2-oxygenated A-homo-5α-cholestane derivatives
1973, Vol. 38, Issue 2, pp. 565–574 [Abstract] - A. Kurek, L. Kohout, J. Fajkoš and F. Šorm
On steroids. CXLVI. B-Homosteroids. VII. Favorskii rearrangement of some B-homosteroid bromo ketones
1973, Vol. 38, Issue 1, pp. 279–288 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. CXLV. Some analogues of B-normethyltestosterone
1973, Vol. 38, Issue 1, pp. 270–278 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. CXLIV. 6-Hydroxylated B-norcholestane derivatives
1972, Vol. 37, Issue 12, pp. 4091–4098 [Abstract] - K. Waisser, M. Buděšínský, A. Vítek and A. Vystrčil
Triterpenes. XXVII. Conformational analysis of the A-cycle of 1,3-dihydroxy derivatives of pentacyclic triterpenoids
1972, Vol. 37, Issue 11, pp. 3652–3659 [Abstract] - L. Kohout and J. Fajkoš
On steroids. CXLIII. B-Homosteroids. VI. Simmons-Smith methylenation of Δ5-steroids
1972, Vol. 37, Issue 10, pp. 3490–3500 [Abstract] - J. Fajkoš and J. Joska
On steroids. CXLII. 5,7-Cyclosteroids. VI. Acetolysis of 4α-methanesulphonyloxy-5,7,β-cyclo-5β-cholestane
1972, Vol. 37, Issue 10, pp. 3483–3489 [Abstract] - V. Šanda, J. Fajkoš, F. Šorm and J. Protiva
On steroids. CXXXX. B-Norsteroid analogues of corticoids
1972, Vol. 37, Issue 8, pp. 2807–2811 [Abstract] - A. Kasal and J. Joska
On steroids. CXXXIX. Addition of hypobromous acid derivatives to 5(6)-unsaturated B-norsteroids
1972, Vol. 37, Issue 7, pp. 2234–2245 [Abstract] - L. Blažek, M. Arient, M. Buděšínský, H. Kovaříková, L. Buřič and Z. Dienstbier
Estimation of pyrimidine deoxyribonucleosides in urine
1972, Vol. 37, Issue 6, pp. 1933–1937 [Abstract] - J. Klinot, M. Buděšínský and A. Vystrčil
Triterpenes. XXIV. Migration of the side chain during the acid catalysed isomerisation of unsaturated 3,4-seco derivatives
1972, Vol. 37, Issue 4, pp. 1356–1370 [Abstract] - V. Šanda, J. Fajkoš and F. Šorm
On steroids. CXXXI. The preparation of 11-hydroxy-B-norprogesterones
1970, Vol. 35, Issue 11, pp. 3445–3451 [Abstract] - A. Vystrčil and M. Buděšínský
Triterpenes. XVII. Preparation of new 19αH-lupane derivatives
1970, Vol. 35, Issue 1, pp. 312–320 [Abstract] - A. Vystrčil and M. Buděšínský
Triterpenes. XVI. Unusual epimerisation of the C(19)-acetyl group of 20-oxo-30-norlupane derivatives
1970, Vol. 35, Issue 1, pp. 295–311 [Abstract] - L. Kohout and J. Fajkoš
On steroids. CXXV. B-Homosteroids. IV. Conformation of the B-ring in B-homosteroid ketones and α-bromoketones
1969, Vol. 34, Issue 8, pp. 2439–2448 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. CXXIV. 5,7-Cyclosteroids. V. Synthesis of 5,7β-cyclo-5β-pregnane derivatives
1969, Vol. 34, Issue 8, pp. 2429–2438 [Abstract] - L. Kohout, J. Fajkoš and F. Šorm
On steroids. CXXIII. B-Homosteroids. III. Conformation of the B-ring in B-homosteroid bromohydrins
1969, Vol. 34, Issue 7, pp. 1954–1962 [Abstract] - V. Šanda, J. Fajkoš and F. Šorm
On steroids. CXXII. Synthesis of B-norestrone
1969, Vol. 34, Issue 2, pp. 681–685 [Abstract] - L. Kohout, J. Fajkoš and F. Šorm
On steroids. CXXI. B-Homosteroids. II. Conformation of the B-ring in B-homosteroid alcohols and epoxides
1969, Vol. 34, Issue 2, pp. 601–617 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. CXVIII. 5,7-Cyclosteroids. IV. Synthesis of 2,3-disubstituted 5β,7β-cyclosteroids
1968, Vol. 33, Issue 10, pp. 3356–3365 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. CXVII. 5,7-Cyclosteroids. III. 5,7-Cyclosteroid androgen analogues
1968, Vol. 33, Issue 10, pp. 3342–3355 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. CXVI. 5,7-Cyclosteroids. II. Solvolytic reactions of the epimeric 3-methanesulphonyloxy-5,7-cyclosteroids
1968, Vol. 33, Issue 10, pp. 3324–3341 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. CXII. 5,7-Cyclosteroids. I. The Simmons-Smith methylenation of Δ5-B-norsteroids
1968, Vol. 33, Issue 7, pp. 2049–2058 [Abstract] - J. Joska and J. Fajkoš
On steroids. CX. Synthesis of B-nor-epi-cholesterol
1967, Vol. 32, Issue 11, pp. 3941–3952 [Abstract] - V. Šanda and J. Fajkoš
On steroids. CVII. Synthesis of epimeric 3-bromo-4-ketones and 3,4-epoxides in the 5β-cholestane series
1967, Vol. 32, Issue 10, pp. 3726–3732 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. CV. Bromination of some B-norsteroid-6-ketones
1967, Vol. 32, Issue 7, pp. 2605–2617 [Abstract] - L. Kohout, J. Fajkoš and F. Šorm
On steroids. CIV. 6,7-Substituted B-homosteroids; Stereochemistry and proof of configuration
1967, Vol. 32, Issue 3, pp. 1210–1228 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. CII. Fission of 4β,5β-epoxides of the B-norsteroid series
1966, Vol. 31, Issue 12, pp. 4610–4621 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. C. The B-norsteroid hydroxy ketones and their ORD-curves
1966, Vol. 31, Issue 7, pp. 2745–2758 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. XCV. 4,5-Epoxides in the B-norsteroid series
1966, Vol. 31, Issue 1, pp. 298–309 [Abstract] - V. Šanda and J. Fajkoš
On steroids. XCIV. Synthesis of 3,4-bromoketones and bromohydrins in the 5β-B-norsteroid series
1965, Vol. 30, Issue 9, pp. 2973–2983 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. XCIII. Hypobromous acid addition to 4,5-unsaturated B-norsteroids
1965, Vol. 30, Issue 8, pp. 2615–2625 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. LXXXV. Stereochemistry of the 6-keto-B-norsteroids
1964, Vol. 29, Issue 3, pp. 652–671 [Abstract] - J. Piťha, J. Joska and J. Fajkoš
On steroids. LXXXIII. An unusual case of intermolecular hydrogen bonding in a B-norsteroid 3,6-diol
1963, Vol. 28, Issue 10, pp. 2611–2617 [Abstract] - J. Joska and J. Fajkoš
On steroids. LXXXII. Fission of the 5β,6β-epoxides in the B-norsteroid series
1963, Vol. 28, Issue 10, pp. 2605–2610 [Abstract] - J. Fajkoš, J. Joska, J. Piťha and F. Šorm
On steroids. LXXX. Intramolecular hydrogen bonding in 3,6-disubstituted 5β-B-norsteroids: Conformation of ring A
1963, Vol. 28, Issue 9, pp. 2337–2344 [Abstract] - J. Joska and J. Fajkoš
On steroids. LXXV. 5β,6β-epoxides in the B-norsteroid series
1963, Vol. 28, Issue 3, pp. 621–628 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. LXXIV. Conformation of ring A in 6-substituted 3-keto-5β-B-norsteroids
1963, Vol. 28, Issue 3, pp. 605–620 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. LXXII. Fission of the 5α,6α-epoxyderivatives in the B-norsteroid series
1963, Vol. 28, Issue 1, pp. 82–100 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. LXVIII. Synthesis of the epimeric 15,16-epoxides in the androstane series
1962, Vol. 27, Issue 8, pp. 1856–1860 [Abstract] - J. Fajkoš and J. Joska
On steroids. LXVII. 16-Bromoderivatives in the 5β-B-norandrostane series
1962, Vol. 27, Issue 8, pp. 1849–1855 [Abstract] - J. Fajkoš and V. Šanda
On steroids. LXVI. 16-Bromoderivatives in the 5β-androstane series
1962, Vol. 27, Issue 2, pp. 355–361 [Abstract] - J. Fajkoš, J. Joska and F. Šorm
On steroids. LXIV. The epimeric 15-bromo-16-ketones in the androstane series
1962, Vol. 27, Issue 1, pp. 64–72 [Abstract] - V. Šanda and J. Fajkoš
On steroids. LXIII. Some analogues of androgens substituted in position 16
1961, Vol. 26, Issue 11, pp. 2734–2738 [Abstract] - Ž. Procházka, J. Fajkoš, J. Joska and F. Šorm
On steroids. LX. Microbial oxygenation of B-norsteroids
1961, Vol. 26, Issue 8, pp. 2068–2071 [Abstract] - J. Joska, A. A. Achrem, J. Fajkoš and F. Šorm
On steroids. LXI. Some B-norsteroid hormone analogues
1961, Vol. 26, Issue 8, pp. 2050–2057 [Abstract] - V. Černý, J. Joska and L. Lábler
On steroids. LIX. Application of thin layer chromatography without binder for rapid analytical and preparative separation of steroids
1961, Vol. 26, Issue 6, pp. 1658–1668 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. LVIII. Some analogues of androgens substituted in position 7
1961, Vol. 26, Issue 6, pp. 1646–1657 [Abstract] - J. Fajkoš and J. Joska
On steroids. LVII. Infrared spectra of the epimeric 16-bromo-17-ketones and alcohols of the androstane series: Conformation of the D-ring
1961, Vol. 26, Issue 4, pp. 1118–1136 [Abstract] - J. Fajkoš and J. Joska
On steroids. LV. Bromination of 3β-acetoxy-5α-androstan-16-one
1960, Vol. 25, Issue 11, pp. 2863–2877 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. LI. Derivatives of 5α- and 5β-B-norandrostane
1960, Vol. 25, Issue 9, pp. 2341–2357 [Abstract] - I. Malunowicz, J. Fajkoš and F. Šorm
On steroids. XLI. Epimeric 2-bromo and 4-bromo derivatives of cholestan-3-one
1960, Vol. 25, Issue 5, pp. 1359–1370 [Abstract] - J. Joska, J. Fajkoš and F. Šorm
On steroids. L. Analogues of androgens with the B-norsteroid skeleton
1960, Vol. 25, Issue 4, pp. 1086–1090 [Abstract] - J. Fajkoš
On steroids. XXXVI. Catalytic hydrogenation of steroidal enol acetates; A new synthesis of testosterone and oestradiol
1960, Vol. 25, Issue 4, pp. 1078–1085 [Abstract] - J. Fajkoš and F. Šorm
On steroids. XXXIX. Epimeric 2- and 4-bromo derivatives of androstan-3-one
1959, Vol. 24, Issue 9, pp. 3115–3135 [Abstract] - J. Fajkoš
On steroids. XL. Reduction of steroidal ketones with lithium tri-tert.-butoxyaluminohydride
1959, Vol. 24, Issue 7, pp. 2284–2290 [Abstract] - M. Horák and J. Fajkoš
Über Steroide XLII. Über die Infrarotspektren und die Nah-konstellation der Steroiden Bromhydrine
1959, Vol. 24, Issue 5, pp. 1515–1519 [Abstract] - J. Fajkoš and F. Šorm
On steroids. XXXV. The synthesis of epimeric 16-bromo derivatives of androsterone and testosterone
1959, Vol. 24, Issue 3, pp. 766–785 [Abstract] - J. Fajkoš
On steroids. XXXII. Synthesis and reactions of Δ15 derivatives of androstane
1958, Vol. 23, Issue 12, pp. 2155–2168 [Abstract] - J. Fajkoš
On steroids. XXXI. Synthesis of 3β-hydroxyandrost-15-en-17-one
1958, Vol. 23, Issue 8, pp. 1559–1569 [Abstract] - J. Joska and F. Šorm
On steroids. XXXVIII. The synthesis of 3β-hydroxy-B-norandrost-5-en-17-one
1958, Vol. 23, Issue 7, pp. 1377–1381 [Abstract] - J. Fajkoš and F. Šorm
On steroids. XXVIII. Synthesis of analogues of progesterone and desoxycorticosterone with the side-chain in position 16
1957, Vol. 22, Issue 6, pp. 1873–1886 [Abstract] - J. Fajkoš and F. Šorm
On steroids. XXIII. Synthesis and configuration of the two stereoisomeric 16-acetylandrostan-3β-ols
1956, Vol. 21, Issue 4, pp. 1013–1022 [Abstract] - J. Joska and F. Šorm
On steroids. XX. Some nitrogen-containing analogues of the androgenic hormones
1956, Vol. 21, Issue 3, pp. 754–760 [Abstract] - J. Fajkoš
On steroids. XVIII. Fission of 16,17-epoxy derivatives of androstane
1955, Vol. 20, Issue 6, pp. 1478–1483 [Abstract] - J. Fajkoš and F. Šorm
On steroids. XVI. Preparation of the two stereoisomeric androstan-3β,16-diols and proof of their configurations
1955, Vol. 20, Issue 6, pp. 1464–1472 [Abstract] - J. Fajkoš
On steroids. XV. The configuration of some 16-bromo derivatives of androstane
1955, Vol. 20, Issue 2, pp. 312–335 [Abstract] - J. Fajkoš and F. Šorm
On Steroids. XI. Preparation of the stereoisomeric androstane-16-carboxylic acids
1954, Vol. 19, Issue 4, pp. 766–781 [Abstract] - J. Joska, V. Černý and F. Šorm
On steroids. X. Some dimethylamino derivatives of allopregnane
1954, Vol. 19, Issue 3, pp. 551–558 [Abstract] - J. Fajkoš and F. Šorm
On steroids. IX. Synthesis of 3-hydroxy-16-ketoandrostane and of 3,16-diketoandrostene-(4)
1954, Vol. 19, Issue 2, pp. 349–356 [Abstract] - J. Fajkoš and F. Šorm
On steroids. VII. Synthesis of 3β-hydroxyandrosta-7,16-diene-16-carboxylic acid
1954, Vol. 19, Issue 1, pp. 91–97 [Abstract] - F. Šorm and J. Fajkoš
On the synthesis of 6-methylazulene
1947, Vol. 12, pp. 81–92 [Abstract]