Collect. Czech. Chem. Commun. 1963, 28, 2605-2610
https://doi.org/10.1135/cccc19632605

On steroids. LXXXII. Fission of the 5β,6β-epoxides in the B-norsteroid series

J. Joska and J. Fajkoš

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. 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]
  • 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]
  • 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. Joska, J. Fajkoš and M. Buděšínský
    Synthesis of 4,5-cyclo-A-homo-B-norcholestane derivatives
    1974, Vol. 39, Issue 7, pp. 1914–1924 [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]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CLVI. 6-Methylanalogues of B-norsteroids
    1973, Vol. 38, Issue 7, pp. 2121–2131 [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]
  • 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]
  • 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]
  • 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]
  • 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. 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]