Collect. Czech. Chem. Commun.
1972, 37, 3828-3836
https://doi.org/10.1135/cccc19723828
Computer construction of standard steroid models
P. Sedmera, A. Vítek and Z. Samek
Individual author index pages
Other CCCC articles of these authors
- J. Volc, P. Sedmera, K. Roy, V. Šašek and J. Vokoun
Two antibiotic benzoquinone-hydroquinone pairs from the pyrenomycete Camarops microspora (KARST.) SHEAR
1977, Vol. 42, Issue 10, pp. 2957–2961 [Abstract] - Z. Samek, M. Holub, B. Drożdż, H. Grabarczyk and B. Hładoń
Xerantholide - A new cytotoxically active sesquiterpenic lactone from Xeranthemum cylindraceum SIBTH. et SMITH
1977, Vol. 42, Issue 8, pp. 2441–2447 [Abstract] - J. Jizba, Z. Samek and L. Novotný
A sesquiterpenic alkaloid, eremophilene lactam, from the rhizomes of Petasites hybridus
1977, Vol. 42, Issue 8, pp. 2438–2440 [Abstract] - Z. Samek, M. Holub, B. Drożdż and H. Grabarczyk
Arctolide - A new sesquiterpenic lactone from Arctotis grandis THUNB.
1977, Vol. 42, Issue 7, pp. 2217–2223 [Abstract] - Z. Samek, J. Hapala, O. Fiedler and Z. Arnold
Structure of amidomalonaldehydes and some related compounds
1977, Vol. 42, Issue 5, pp. 1659–1685 [Abstract] - M. K. Yusupov, N. L. Mukhamedyarova, A. S. Sadykov, L. Dolejš, P. Sedmera and F. Šantavý
Constitution of the alkaloid kesselringine
1977, Vol. 42, Issue 5, pp. 1581–1587 [Abstract] - H. Potěšilová, L. Dolejš, P. Sedmera and F. Šantavý
Constitution of three alkaloids (10,11-epoxycolchicine, colchiciline and 3-demethyl-N-deacetyl-N-formylcolchicine) isolated from the seeds of Colchicum latifolium S. S.
1977, Vol. 42, Issue 5, pp. 1571–1580 [Abstract] - Z. Samek, M. Holub, H. Grabarczyk, B. Drożdż and V. Herout
The structure of hydroxyisonobilin - A cytostatically active sesquiterpenic lactone from the leaves of Anthemis nobilis L.
1977, Vol. 42, Issue 3, pp. 1065–1068 [Abstract] - M. Holub and Z. Samek
Isolation and structure of 3-epinobilin, 1,10-epoxynobilin and 3-dehydronobilin - Other sesquiterpenic lactones from the flowers of Anthemis nobilis L. Revision of the structure of nobilin and eucannabinolide
1977, Vol. 42, Issue 3, pp. 1053–1064 [Abstract] - J. Farkaš, K. Šebesta, K. Horská, Z. Samek, L. Dolejš and F. Šorm
Structure of thuringiensin, the thermostable exotoxin from Bacillus thuringiensis
1977, Vol. 42, Issue 3, pp. 909–929 [Abstract] - M. Holub, J. Popławski, P. Sedmera and V. Herout
N-Ethoxycarbonyl-L-prolinamide, a new alkaloid from the leaves of Arnica montana L.
1977, Vol. 42, Issue 1, pp. 151–154 [Abstract] - Š. Urban, M. Horák and A. Vítek
Application of a general profile function to mathematic description and to separation of bands in the infrared spectrum of methanesulphonyl chloride
1976, Vol. 41, Issue 12, pp. 3685–3690 [Abstract] - S. Vašíčková, A. Vítek, M. Tichý, J. P. Girard and J. C. Rossi
Infrared study of chair-boat equilibria and deformations in derivatives of trans-bicyclo[4,3,0]nonane: A comparison with trans-decalin system
1976, Vol. 41, Issue 12, pp. 3600–3606 [Abstract] - J. Zábranský, J. V. Černý and P. Sedmera
Stereochemistry of formation of thietane, thiolane and thiane derivatives in cyclisations of dichloro alcohols and chlorooxiranes
1976, Vol. 41, Issue 11, pp. 3294–3307 [Abstract] - Nguyen Thi Nghia, P. Sedmera, A. Klásek, A. Boeva, L. Drjanovska, L. Dolejš and F. Šantavý
Bulgarsenine and retroisosenine, alkaloids from Senecio nemorensis L., var. bulgaricus (VEL.) STOJ. et STEF.
1976, Vol. 41, Issue 10, pp. 2952–2963 [Abstract] - J. Harmatha, Z. Samek, M. Synáčková, L. Novotný, V. Herout and F. Šorm
Neutral components of the extract from Homogine alpina (L.) CASS.
1976, Vol. 41, Issue 7, pp. 2047–2058 [Abstract] - Z. Samek, M. Holub, E. Bloszyk, B. Drożdż and V. Herout
Relative and absolute configuration of the sequiterpenic lactone erivanin
1975, Vol. 40, Issue 9, pp. 2676–2679 [Abstract] - V. Benešová, Z. Samek and S. Vašíčková
Structure of the sequiterpenic lactone diplophyllolide and other components from the liverwort Diplophyllum albicans (L.) DUM.
1975, Vol. 40, Issue 6, pp. 1966–1970 [Abstract] - A. Klásek, P. Sedmera and F. Šantavý
Quaternary dihydropyrrolizines
1975, Vol. 40, Issue 2, pp. 568–573 [Abstract] - K. Čapek, J. Jarý and Z. Samek
Contraction of the pyranoside ring in methyl 3-acetamido-3,6-dideoxy-2-O-methanesulfonyl-α-L-gluco- and -α-L-galactopyranoside
1975, Vol. 40, Issue 1, pp. 149–163 [Abstract] - M. Horák and A. Vítek
Computerized assignment of the binary combination/overtone vibrational frequencies to infrared bands of monohalogeno benzenes
1974, Vol. 39, Issue 5, pp. 1107–1117 [Abstract] - K. Vokáč and Z. Samek
Standard sesquiterpenic lactones for structural correlations; Stereoisomeric (6R,7S,10S,11S)-10-hydroxyguaian-6,12-olides and related (6R,7S)-guaienolides
1974, Vol. 39, Issue 2, pp. 480–500 [Abstract] - J. Smolíková, M. Havel, S. Vašíčková, A. Vítek, M. Svoboda and K. Bláha
Conformation of 1-aza-2-cycloalkanones with large rings: Infrared spectroscopic study
1974, Vol. 39, Issue 2, pp. 459–467 [Abstract] - A. Vítek
New function describing the profiles of IR absorption bands
1974, Vol. 39, Issue 2, pp. 366–368 [Abstract] - J. Smolíková, M. Havel, S. Vašíčková, A. Vítek, M. Svoboda and K. Bláha
Conformation of medium ring lactams: Infrared spectroscopic study
1974, Vol. 39, Issue 1, pp. 293–306 [Abstract] - J. Tax, P. Sedmera, J. Vokoun, K. Eckardt, I. Komersová and Z. Vaněk
ε1-Pyrromycinone, a new anthracyclinone from Streptomyces galilaeus JA 3043
1973, Vol. 38, Issue 9, pp. 2661–2664 [Abstract] - A. Klásek, P. Sedmera, A. Boeva and F. Šantavý
Pyrrolizidine alkaloids. XX. Nemorensine, an alkaloid from Senecio nemorensis L.
1973, Vol. 38, Issue 8, pp. 2504–2512 [Abstract] - Z. Samek, M. Holub, H. Grabarczyk, B. Drożdż and V. Herout
On terpenes. CCXXIX. Structure of sesquiterpenic lactones from Tanacetum vulgare L.
1973, Vol. 38, Issue 7, pp. 1971–1976 [Abstract] - M. Holub, Z. Samek, D. P. Popa and V. Herout
On terpenes. CCXXVIII. The structure of the sesquiterpenic lactone silerolide
1973, Vol. 38, Issue 6, pp. 1804–1808 [Abstract] - S. Vašíčková, A. Vítek and M. Tichý
Stereochemical studies. LXXIII. Conformational equilibria in 3-hydroxypiperidine and in some of its methyl derivatives
1973, Vol. 38, Issue 6, pp. 1791–1803 [Abstract] - M. Holub, Z. Samek, R. DeGroote, V. Herout and F. Šorm
On terpenes. CCXXVII. The structure of the sesquiterpenic triester lactone trilobolide
1973, Vol. 38, Issue 5, pp. 1551–1562 [Abstract] - M. Holub and Z. Samek
On terpenes. CCXXVI. The structure of lasolide - A sesquiterpenic lactone from Laser trilobum (L.) BORKH.
1973, Vol. 38, Issue 5, pp. 1428–1433 [Abstract] - V. Benešová, P. Sedmera, V. Herout and F. Šorm
On terpenes. CCXXIV. The structure of myliol, a tetracyclic sesquiterpenic alcohol from the liverwort Mylia taylorii (HOOK.) GRAY
1973, Vol. 38, Issue 4, pp. 1084–1090 [Abstract] - L. Novotný, M. Krojidlo, Z. Samek, J. Kohoutová and F. Šorm
On terpenes. CCXXIII. The structure of nemosenins A, B, C, D, and senemorin, new furoeremophilane derivatives from Senecio nemorensis, subsp. fuchsii
1973, Vol. 38, Issue 3, pp. 739–755 [Abstract] - M. Holub and Z. Samek
On terpenes. CCXXII. The structure of archangelolide, a sesquiterpenic lactone from Laserpitium archangelica WULF.
1973, Vol. 38, Issue 3, pp. 731–738 [Abstract] - B. Drożdż, Z. Samek, M. Holub and V. Herout
On terpenes. CCXXI. The structure of alatolide, a sesquiterpenic lactone from Jurinea alata CASS.
1973, Vol. 38, Issue 3, pp. 727–730 [Abstract] - J. Smolíková, A. Vítek and K. Bláha
Amino acids and peptides. CXI. Conformational dependence of the stretching vibration of the N-H bond in trans-amides
1973, Vol. 38, Issue 2, pp. 548–558 [Abstract] - P. Sedmera, A. Klásek, A. M. Duffield and F. Šantavý
Pyrrolizidine alkaloids. XIX. Structure of the alkaloid erucifoline
1972, Vol. 37, Issue 12, pp. 4112–4119 [Abstract] - R. Řeřicha, A. Vítek, S. Vašíčková, M. Pánková and J. Závada
The infrared spectra of 1-decenes deuterated on the double bond. A comparison with the vinyl halides-dx
1972, Vol. 37, Issue 11, pp. 3749–3761 [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] - M. Pánková, A. Vítek, S. Vašíčková, R. Řeřicha and J. Závada
Stereochemical studies. LXIX. Contribution of syn- and anti-elimination to the monosubstituted olefin formation from 1-decyltrimethylammonium base
1972, Vol. 37, Issue 10, pp. 3456–3466 [Abstract] - F. Hanousek, B. Štíbr, S. Heřmánek, J. Plešek, A. Vítek and F. Haruda
Chemistry of boranes. XXVI. Infrared spectra of monosubstituted decaboranes
1972, Vol. 37, Issue 9, pp. 3001–3009 [Abstract] - Z. Samek, M. Holub, K. Vokáč, B. Drożdż, G. Jommi, P. Gariboldi and A. Corbella
On terpenes. CCXIX. The structure of grosheimin
1972, Vol. 37, Issue 8, pp. 2611–2629 [Abstract] - B. Drożdż, H. Grabarczyk, Z. Samek, M. Holub, V. Herout and F. Šorm
On terpenes. CCXVI. Sesquiterpenic lactones from Eupatorium cannabinum L. Revision of the structure of eupatoriopicrin
1972, Vol. 37, Issue 5, pp. 1546–1554 [Abstract] - K. Vokáč, Z. Samek, V. Herout and F. Šorm
On terpenes. CCXV. Absolute configuration of artabsin
1972, Vol. 37, Issue 4, pp. 1346–1355 [Abstract] - M. Holub, O. Motl, Z. Samek and V. Herout
On terpenes. CCXIV. The structure of two sesquiterpenic lactones, isomontanolide and acetylisomontanolide from Laserpitium siler L.
1972, Vol. 37, Issue 4, pp. 1186–1194 [Abstract] - H. Naimie, Z. Samek, L. Dolejš and Z. Řeháček
Über die flüchtigen Inhaltstoffe von Asa foetida; Zwei neuen natürlichen Schweffelverbindungen mit pestizider Wirkung
1972, Vol. 37, Issue 4, pp. 1166–1177 [Abstract] - J. Smolíková, A. Vítek and K. Bláha
Amino acids and peptides. CIII. Infrared spectra and conformations of methylamides of N-acylated amino acids with a hydroxyl group in the side chain
1971, Vol. 36, Issue 7, pp. 2474–2485 [Abstract] - A. Klásek, P. Sedmera and F. Šantavý
Pyrrolizidine alkaloids. XVI. Alkaloids from some plants of the genus Ligularia
1971, Vol. 36, Issue 6, pp. 2205–2215 [Abstract] - J. Popławski, M. Holub, Z. Samek and V. Herout
On terpenes. CCIX. Arnicolides - sesquiterpenic lactones from the leaves of Arnica montana L.
1971, Vol. 36, Issue 6, pp. 2189–2199 [Abstract] - M. Tichý, S. Vašíčková, A. Vítek and J. Sicher
Stereochemical studies. LIX. Flattened chair and twist-boat conformations in cis-2-dimethylaminocyclohexanols
1971, Vol. 36, Issue 4, pp. 1436–1447 [Abstract] - Z. Samek, M. Holub, V. J. Novikov, J. N. Forostjan and D. P. Popa
On terpenes. CCVIII. The structure of ivoxanthin, a sesquiterpenic lactone from Cyclachaena xanthifolia FRESEN.
1970, Vol. 35, Issue 12, pp. 3818–3821 [Abstract] - M. Holub, J. Tax, P. Sedmera and F. Šorm
On terpenes. CCVII. Contribution to the stereochemistry of substances with daucane skeleton and the determination of absolute configuration of laserpitin
1970, Vol. 35, Issue 12, pp. 3597–3609 [Abstract] - M. Holub, D. P. Popa, Z. Samek, V. Herout and F. Šorm
On terpenes. CCVI. Neutral components of the light petroleum extract of the root of Laserpitium siler L. The structure of the sesquiterpenic lactone montanolide
1970, Vol. 35, Issue 11, pp. 3296–3308 [Abstract] - K. Kefurt, J. Jarý and Z. Samek
Lactones. XIV. Reaction of methyl 2,3-O-isopropylidene-α-L-rhamnopyranoside with the triphenyl phosphite-methyl iodide reagent
1970, Vol. 35, Issue 9, pp. 2613–2622 [Abstract] - J. Slavík, L. Dolejš and P. Sedmera
Alkaloids of the Papaveraceae. XLIV. Quaternary alkaloids from roots of three Escholtzia species and from the aerial part of Hunnemannia fumariaefolia SWEET: Constitution of escholidine
1970, Vol. 35, Issue 9, pp. 2597–2612 [Abstract] - J. Slavík, P. Sedmera and K. Bláha
Alkaloids of the Papaveraceae. XLIII. Reduction products of (-)-mecambrine and configuration of roemeronine, roemeramine, and dihydromecambrinols
1970, Vol. 35, Issue 5, pp. 1558–1566 [Abstract] - V. Šimánek, V. Preininger, P. Sedmera and F. Šantavý
Isolation and chemistry of the alkaloids from some plants of the genus Papaver. XLVIII. Studies in exhaustive methylation of tetrahydroprotoberberine alkaloids and the structure of the alkaloids PO-4, PO-5, orientalidine and mecambridine
1970, Vol. 35, Issue 5, pp. 1440–1455 [Abstract] - K. Vokáč, Z. Samek, V. Herout and F. Šorm
On terpenes. CCV. The structure of two native orange substances from Lactarius deliciosus L.
1970, Vol. 35, Issue 4, pp. 1296–1301 [Abstract] - A. Klásek, P. Sedmera and F. Šantavý
Pyrrolizidine alkaloids. XV. Structure of the alkaloid clivorine
1970, Vol. 35, Issue 3, pp. 956–969 [Abstract] - J. Křepinský, G. Jommi, Z. Samek and F. Šorm
On terpenes. CCIV. The sesquiterpenic constituents of Aristolochia debilis SIEB. et ZUCC. The structure of debilone
1970, Vol. 35, Issue 2, pp. 745–748 [Abstract] - M. Holub, Z. Samek, D. P. Popa, V. Herout and F. Šorm
On terpenes. CCIII. The structure of laserolide, a sesquiterpenic lactone from the roots of Laser trilobum L. BORKH.
1970, Vol. 35, Issue 1, pp. 284–294 [Abstract] - Z. Samek, J. Harmatha, L. Novotný and F. Šorm
On terpenes. CCII. Absolute configuration of adenostylone, neoadenostylone and isoadenostylone from Adenostyles alliariae (GOUAN) KERN, and of decompostin from Cacalia decomposita A. GRAY
1969, Vol. 34, Issue 9, pp. 2792–2808 [Abstract] - K. Vokáč, Z. Samek, V. Herout and F. Šorm
On terpenes. CCI. The structure of artabsin and the origin and structure of the coloured hydrocarbon chamazulenogen from wormwood oil
1969, Vol. 34, Issue 8, pp. 2288–2305 [Abstract] - V. Benešová, Z. Samek, V. Herout and F. Šorm
Plant substances. XXIX. Isolation and structure of two new indole alkaloids from Riccardia sinuata (HOOK.) TREV.
1969, Vol. 34, Issue 6, pp. 1807–1809 [Abstract] - J. Harmatha, Z. Samek, L. Novotný, V. Herout and F. Šorm
On terpenes. CC. The structure of adenostylone, isoadenostylone and neoadenostylone - components of the rhizomes of Adenostyles alliariae (GOUAN) KERN.
1969, Vol. 34, Issue 6, pp. 1739–1749 [Abstract] - J. Farkaš, K. Šebesta, K. Horská, Z. Samek, L. Dolejš and F. Šorm
The structure of exotoxin of Bacillus thuringiensis var. gelechiae. Preliminary communication
1969, Vol. 34, Issue 3, pp. 1118–1120 [Abstract] - V. Benešová, Z. Samek, V. Herout and F. Šorm
On terpenes. CXCVIII. Isolation and structure of pinguisone from Aneura pinguis (L.) DUM.
1969, Vol. 34, Issue 2, pp. 582–592 [Abstract] - L. Novotný, Z. Samek, J. Harmatha and F. Šorm
On terpenes. CXCVI. 9-Hydroxyfuroeremophilane, a further dominating component from light petroleum extract of Petasites hybridus (L.) GAERTN., MEY et SCHERB. rhizomes
1969, Vol. 34, Issue 1, pp. 336–339 [Abstract] - V. Špirko and Z. Samek
On the Hamiltonian traces in high-resolution NMR analysis
1968, Vol. 33, Issue 10, pp. 3372–3374 [Abstract] - M. Suchý, Z. Samek, V. Herout and F. Šorm
On terpenes. CXCV. The structure and absolute configuration of scabiolide
1968, Vol. 33, Issue 7, pp. 2238–2244 [Abstract] - P. Sedmera, F. Hanousek and Z. Samek
Chemistry of boranes. XIII. Determination of structure of some halogenedecaboranes and oxido-bis-tridecahydrodecaborane by means of 11B NMR and IR spectra
1968, Vol. 33, Issue 7, pp. 2169–2176 [Abstract] - B. Drożdż, M. Holub, Z. Samek, V. Herout and F. Šorm
On terpenes. CXCII. The constitution and absolute configuration of onopordopicrine - A sesquiterpenic lactone from Onopordon acanthium L.
1968, Vol. 33, Issue 6, pp. 1730–1737 [Abstract] - A. Vítek
A general method for the computation of redundant internal coordinates in cyclic molecules
1968, Vol. 33, Issue 5, pp. 1601–1604 [Abstract] - Z. Samek
Internal rotation energy barrier of terminal N-dimethyl groups as a function of the length of polymethinium chains
1968, Vol. 33, Issue 5, pp. 1385–1392 [Abstract] - M. Suchý, Z. Samek, V. Herout and F. Šorm
On terpenes. CXC. Constitution and configuration of albicolide, a new germacranolide from Jurinea albicaulis
1967, Vol. 32, Issue 11, pp. 3934–3940 [Abstract] - M. Suchý, Z. Samek, V. Herout, R. B. Bates, G. Snatzke and F. Šorm
On terpenes. CLXXXVIII. Constitution and configuration of pelenolides, a new group of sesquiterpene lactone germacranolides
1967, Vol. 32, Issue 11, pp. 3917–3925 [Abstract] - K. Bláha and Z. Samek
Amino acids and peptides. LXXVI. NMR-spectroscopy of cis-peptide bonds in diastereomeric piperazinediones
1967, Vol. 32, Issue 10, pp. 3780–3784 [Abstract] - M. Suchý, Z. Samek, V. Herout and F. Šorm
On terpenes. CLXXXVI. The structure of salonitenolide, a sesquiterpenic lactone of germacrane type from Centaurea salonitana VIS
1967, Vol. 32, Issue 5, pp. 2016–2021 [Abstract] - M. Holub, Z. Samek, V. Herout and F. Šorm
On terpenes. CLXXXIII. The constitution of laserpitine - a sesquiterpenic compound from Laserpitium latifolium L. root
1967, Vol. 32, Issue 2, pp. 591–609 [Abstract] - K. Waisser, A. Vystrčil and A. Vítek
Triterpenes. XI. Infra-red absorption of triterpenic 1-hydroxy derivatives
1966, Vol. 31, Issue 12, pp. 4741–4743 [Abstract] - K. Bláha, J. Smolíková and A. Vítek
Amino acids and peptides. LXIV. Infrared spectra of substituted 2,5-piperazinediones and the detection of cis-peptide bonds in diastereomeric cyclohexapeptides
1966, Vol. 31, Issue 11, pp. 4296–4311 [Abstract] - Z. Ksandr, Z. Samek, V. Špirko and M. Ferles
Studies in the pyridine series. XIII. NMR-shift ranges for some isomeric alkylsubstituted tetrahydropyridines
1966, Vol. 31, Issue 7, pp. 3003–3007 [Abstract] - L. Lábler, Z. Samek, J. Smolíková and F. Šorm
On steroids. XCVII. Isolation and structure of some secondary formed weak bases from Holarrhena antidysenterica
1966, Vol. 31, Issue 5, pp. 2034–2047 [Abstract] - L. Novotný, Z. Samek and F. Šorm
On terpenes. CLXXVI. Isolation and structure of dimethoxydihydrofuroeremophilane
1966, Vol. 31, Issue 1, pp. 371–374 [Abstract] - M. Suchý, Z. Samek, V. Herout and F. Šorm
On terpenes. CLXXV. Revision of structure of artiopicrin, cnicin and scabiolide
1965, Vol. 30, Issue 10, pp. 3473–3478 [Abstract] - Z. Samek and J. Farkaš
Nucleic acid components and their analogues. LXIV. Nuclear magnetic resonance spectra of anomeric 1-D-ribopyranosylthymines
1965, Vol. 30, Issue 7, pp. 2149–2156 [Abstract]
