Works matching AU Šaman, David

Results: 38

A General Approach to Optically Pure [5]-, [6]-, and [7]Heterohelicenes.

Published in:

Angewandte Chemie, 2012, v. 124, n. 24, p. 5959, doi. 10.1002/ange.201108307

By:

Žádný, Jaroslav;
Jančařík, Andrej;
Andronova, Angelina;
Šámal, Michal;
Vacek Chocholoušová, Jana;
Vacek, Jaroslav;
Pohl, Radek;
Šaman, David;
Císařová, Ivana;
Stará, Irena G.;
Starý, Ivo

Publication type:

Article

β-glycosidases: Tools for chiral discrimination.

Published in:

Chirality, 1999, v. 11, n. 5/6, p. 451, doi. 10.1002/(SICI)1520-636X(1999)11:5/6<451::AID-CHIR16>3.0.CO;2-D

By:

Zarevúcka, Marie;
Vacek, Miroslav;
Kuldová, Jelena;
Šaman, David;
Wimmer, Zdeněk;
Weignerová, Lenka;
Křen, Vladimír

Publication type:

Article

Seasonal variations in the content of taxanes in the bark of Taxus baccata L.

Published in:

Phytochemical Analysis, 1999, v. 10, n. 6, p. 319, doi. 10.1002/(SICI)1099-1565(199911/12)10:6<319::AID-PCA471>3.0.CO;2-W

By:

Veselá, Daniela;
Šaman, David;
Valterová, Irena;
Vanĕk, Tomáš

Publication type:

Article

Triterpenoid–PEG Ribbons Targeting Selectivity in Pharmacological Effects.

Published in:

Biomedicines, 2021, v. 9, n. 8, p. 951, doi. 10.3390/biomedicines9080951

By:

Özdemir, Zulal;
Bildziukevich, Uladzimir;
Čapková, Martina;
Lovecká, Petra;
Rárová, Lucie;
Šaman, David;
Zgarbová, Michala;
Lapuníková, Barbora;
Weber, Jan;
Kazakova, Oxana;
Wimmer, Zdeněk

Publication type:

Article

Reduction of 2-Substituted Cyclohexanones by Saccharomyces Cerevisiae.

Published in:

Biocatalysis & Biotransformation, 1996, v. 13, n. 4, p. 233, doi. 10.3109/10242429609003602

By:

Zarevúcka, Marie;
Rejzek, Martin;
Šaman, David;
Streinz, Ludvík;
Wimmer, Zdenek

Publication type:

Article

A Chiral Dicationic [8]Circulenoid: Photochemical Origin and Facile Thermal Conversion into a Helicene Congener.

Published in:

Angewandte Chemie International Edition, 2012, v. 51, n. 48, p. 11972, doi. 10.1002/anie.201203562

By:

Severa, Lukáš;
Ončák, Milan;
Koval, Dušan;
Pohl, Radek;
Šaman, David;
Císařová, Ivana;
Reyes-Gutiérrez, Paul E.;
Sázelová, Petra;
Kašička, Václav;
Teplý, Filip;
Slavíček, Petr

Publication type:

Article

A General Approach to Optically Pure [5]-, [6]-, and [7]Heterohelicenes.

Published in:

Angewandte Chemie International Edition, 2012, v. 51, n. 24, p. 5857, doi. 10.1002/anie.201108307

By:

Žádný, Jaroslav;
Jančařík, Andrej;
Andronova, Angelina;
Šámal, Michal;
Vacek Chocholoušová, Jana;
Vacek, Jaroslav;
Pohl, Radek;
Šaman, David;
Císařová, Ivana;
Stará, Irena G.;
Starý, Ivo

Publication type:

Article

A Straightforward Route to Helically Chiral N-Heteroaromatic Compounds: Practical Synthesis of Racemic 1,14-Diaza[5]helicene and Optically Pure 1- and 2-Aza[6]helicenes.

Published in:

Angewandte Chemie International Edition, 2008, v. 47, n. 17, p. 3188, doi. 10.1002/anie.200705463

By:

Míšek, Jiří;
Teplý, Filip;
Stará, Irena G.;
Tichý, Miloš;
Šaman, David;
Císařová, Ivana;
Vojtíšek, Pavel;
Starý, Ivo

Publication type:

Article

Ascorbigen A—NMR identification.

Published in:

Magnetic Resonance in Chemistry, 2019, v. 57, n. 12, p. 1084, doi. 10.1002/mrc.4890

By:

Sychrovský, Vladimír;
Šaman, David;
Fiala, Radovan;
Humpa, Otakar;
Sýkora, Jan;
Kessler, Pavel;
Blechta, Vratislav;
Dobrev, Petre;
Schraml, Jan

Publication type:

Article

Studies on supramolecular gel formation using DOSY NMR.

Published in:

Magnetic Resonance in Chemistry, 2015, v. 53, n. 4, p. 256, doi. 10.1002/mrc.4185

By:

Nonappa;
Šaman, David;
Kolehmainen, Erkki

Publication type:

Article

13C and 15N NMR chemical shift assignments of N-1-(2- azidoethyl)-4- R-pyrimidin-2-ones by 1H,X HMQ(B)C with z-gradient selection.

Published in:

Magnetic Resonance in Chemistry, 1998, v. 36, n. 6, p. 442, doi. 10.1002/(SICI)1097-458X(199806)36:6<442::AID-OMR314>3.0.CO;2-G

By:

Kolehmainen, Erkki;
Lappalainen, Kari;
Šaman, David;
Holý, Antonin;
Günter, Jaroslav

Publication type:

Article

Modular Synthesis of Helicene-Like Compounds Based on the Imidazolium Motif.

Published in:

European Journal of Organic Chemistry, 2014, v. 2014, n. 26, p. 5681, doi. 10.1002/ejoc.201402746

By:

Čížková, Martina;
Šaman, David;
Koval, Dušan;
Kašička, Václav;
Klepetářová, Blanka;
Císařová, Ivana;
Teplý, Filip

Publication type:

Article

Helicene-Based Phosphite Ligands in Asymmetric Transition-Metal Catalysis: Exploring Rh-Catalyzed Hydroformylation and Ir-Catalyzed Allylic Amination.

Published in:

European Journal of Organic Chemistry, 2011, v. 2011, n. 20/21, p. 3849, doi. 10.1002/ejoc.201100259

By:

Krausová, Zuzana;
Sehnal, Petr;
Bondzic, Bojan P.;
Chercheja, Serghei;
Eilbracht, Peter;
Stará, Irena G.;
Šaman, David;
Starý, Ivo

Publication type:

Article

Diquats with Robust Chirality: Facile Resolution, Synthesis of Chiral Dyes, and Application as Selectors in Chiral Analysis.

Published in:

Chemistry - A European Journal, 2018, v. 24, n. 30, p. 7601, doi. 10.1002/chem.201800369

By:

Talele, Harish R.;
Koval, Dušan;
Severa, Lukáš;
Reyes‐Gutiérrez, Paul E.;
Císařová, Ivana;
Sázelová, Petra;
Šaman, David;
Bednárová, Lucie;
Kašička, Václav;
Teplý, Filip

Publication type:

Article

Dutch Resolution of a configurationally stable [5]helquat.

Published in:

Chirality, 2018, v. 30, n. 3, p. 254, doi. 10.1002/chir.22789

By:

Severa, Lukáš;
Sázelová, Petra;
Císařová, Ivana;
Šaman, David;
Koval, Dušan;
Devadig, Pradeep;
Kašička, Václav;
Teplý, Filip

Publication type:

Article

Novel Oleanolic Acid-Tryptamine and -Fluorotryptamine Amides: From Adaptogens to Agents Targeting In Vitro Cell Apoptosis.

Published in:

Plants (2223-7747), 2021, v. 10, n. 10, p. 2082, doi. 10.3390/plants10102082

By:

Bildziukevich, Uladzimir;
Kvasnicová, Marie;
Šaman, David;
Rárová, Lucie;
Wimmer, Zdeněk

Publication type:

Article

Mesoionic dimethyl derivatives of some 1,2,4-triazinones. The course of the reaction of 3,5-dimethoxy, 3-methoxy-5-methylthio, 5-methoxy-3- methylthio and 3,5-bis(methylthio)-1,2,4-triazine with methyl iodide.

Published in:

Journal of Heterocyclic Chemistry, 1993, v. 30, n. 5, p. 1317, doi. 10.1002/jhet.5570300523

By:

Pískala, Alois;
Gut, Jiří;
Fiedler, Pavel;
Masojídková, Milena;
Šaman, David;
Liboska, Radek

Publication type:

Article

[2+2+2] Cycloisomerisation of Aromatic Cyanodiynes in the Synthesis of Pyridohelicenes and Their Analogues.

Published in:

Chemistry - A European Journal, 2016, v. 22, n. 40, p. 14401, doi. 10.1002/chem.201602747

By:

Klívar, Jiří;
Jančařík, Andrej;
Šaman, David;
Pohl, Radek;
Fiedler, Pavel;
Bednárová, Lucie;
Starý, Ivo;
Stará, Irena G.

Publication type:

Article

Synthesis of Long Oxahelicenes by Polycyclization in a Flow Reactor.

Published in:

Angewandte Chemie, 2017, v. 129, n. 21, p. 5933, doi. 10.1002/ange.201700341

By:

Nejedlý, Jindřich;
Šámal, Michal;
Rybáček, Jiří;
Tobrmanová, Miroslava;
Szydlo, Florence;
Coudret, Christophe;
Neumeier, Maria;
Vacek, Jaroslav;
Vacek Chocholoušová, Jana;
Buděšínský, Miloš;
Šaman, David;
Bednárová, Lucie;
Sieger, Ladislav;
Stará, Irena G.;
Starý, Ivo

Publication type:

Article

A Chiral Dicationic [8]Circulenoid: Photochemical Origin and Facile Thermal Conversion into a Helicene Congener.

Published in:

Angewandte Chemie, 2012, v. 124, n. 48, p. 12138, doi. 10.1002/ange.201203562

By:

Severa, Lukáš;
Ončák, Milan;
Koval, Dušan;
Pohl, Radek;
Šaman, David;
Císařová, Ivana;
Reyes-Gutiérrez, Paul E.;
Sázelová, Petra;
Kašička, Václav;
Teplý, Filip;
Slavíček, Petr

Publication type:

Article

Stereoselective reduction of 2-substituted cyclohexanones by Saccharo-mycescerevisiae.

Published in:

Biotechnology Letters, 2003, v. 25, n. 12, p. 987, doi. 10.1023/a:1024057425226

By:

Zarevúcka, Marie;
Sochůrková, Pavla;
Wimmer, Zdeněk;
Šaman, David

Publication type:

Article

Stigmasterol-Based Novel Low Molecular Weight/Mass Organic Gelators.

Published in:

Molecules, 2011, v. 16, n. 11, p. 9357, doi. 10.3390/molecules16119357

By:

Jana Šusteková;
Pavel Drašar;
David Šaman;
Zdeněk Wimmer

Publication type:

Article

Front Cover: Helquats as Promoters of the Povarov Reaction: Synthesis of 1,2,3,4‐Tetrahydroquinoline Scaffolds Catalyzed by Helicene‐Viologen Hybrids (ChemPlusChem 10/2020).

Published in:

ChemPlusChem, 2020, v. 85, n. 10, p. 2207, doi. 10.1002/cplu.202000565

By:

Reyes‐Gutiérrez, Paul E.;
Amatov, Tynchtyk T.;
Švec, Pavel;
Císařová, Ivana;
Šaman, David;
Pohl, Radek;
Teplý, Filip;
Pospíšil, Lubomír

Publication type:

Article

Helquats as Promoters of the Povarov Reaction: Synthesis of 1,2,3,4‐Tetrahydroquinoline Scaffolds Catalyzed by Helicene‐Viologen Hybrids.

Published in:

ChemPlusChem, 2020, v. 85, n. 10, p. 2211, doi. 10.1002/cplu.202000552

By:

Reyes‐Gutiérrez, Paul E.;
Amatov, Tynchtyk T.;
Švec, Pavel;
Císařová, Ivana;
Šaman, David;
Pohl, Radek;
Teplý, Filip;
Pospíšil, Lubomír

Publication type:

Article

Helquats as Promoters of the Povarov Reaction: Synthesis of 1,2,3,4‐Tetrahydroquinoline Scaffolds Catalyzed by Helicene‐Viologen Hybrids.

Published in:

ChemPlusChem, 2020, v. 85, n. 10, p. 2212, doi. 10.1002/cplu.202000151

By:

Reyes‐Gutiérrez, Paul E.;
Amatov, Tynchtyk T.;
Švec, Pavel;
Císařová, Ivana;
Šaman, David;
Pohl, Radek;
Teplý, Filip;
Pospíšil, Lubomír

Publication type:

Article

Counterion-Induced Inversion of Conformer Stability of a [5]Helquat Dication.

Published in:

ChemPlusChem, 2012, v. 77, n. 8, p. 624, doi. 10.1002/cplu.201200009

By:

Severa, Lukáš;
Jirásek, Michael;
Švec, Pavel;
Teplý, Filip;
Révész, Ágnes;
Schröder, Detlef;
Koval, Dušan;
Kašička, Václav;
Císařová, Ivana;
Šaman, David

Publication type:

Article

Cover Picture: Counterion-Induced Inversion of Conformer Stability of a [5]Helquat Dication (ChemPlusChem 8/2012).

Published in:

ChemPlusChem, 2012, v. 77, n. 8, p. 599, doi. 10.1002/cplu.201290033

By:

Severa, Lukáš;
Jirásek, Michael;
Švec, Pavel;
Teplý, Filip;
Révész, Ágnes;
Schröder, Detlef;
Koval, Dušan;
Kašička, Václav;
Císařová, Ivana;
Šaman, David

Publication type:

Article

New Lipophilic 2-Amino- N, N′-dialkyl-4,5-dimethylimidazolium Cations: Synthesis, Structure, Properties, and Outstanding Thermal Stability in Alkaline Media.

Published in:

Chemistry - A European Journal, 2009, v. 15, n. 37, p. 9477, doi. 10.1002/chem.200901203

By:

Kunetskiy, Roman A.;
Císařová, Ivana;
Šaman, David;
Lyapkalo, Ilya M.

Publication type:

Article

Cover Picture: Helquats: A Facile, Modular, Scalable Route to Novel Helical Dications (Chem. Eur. J. 5/2009).

Published in:

Chemistry - A European Journal, 2009, v. 15, n. 5, p. 1051, doi. 10.1002/chem.200990004

By:

Adriaenssens, Louis;
Severa, Lukáš;
Šálová, Tereza;
Císařová, Ivana;
Pohl, Radek;
Šaman, David;
Rocha, Silvia V.;
Finney, Nathaniel S.;
Pospíšil, Lubomír;
Slavíček, Petr;
Teplý, Filip

Publication type:

Article

Helquats: A Facile, Modular, Scalable Route to Novel Helical Dications.

Published in:

Chemistry - A European Journal, 2009, v. 15, n. 5, p. 1072, doi. 10.1002/chem.200801904

By:

Adriaenssens, Louis;
Severa, Lukáš;
Šálová, Tereza;
Císařová, Ivana;
Pohl, Radek;
Šaman, David;
Rocha, Silvia V.;
Finney, Nathaniel S.;
Pospíšil, Lubomír;
Slavíček, Petr;
Teplý, Filip

Publication type:

Article

Synthesis of Long Oxahelicenes by Polycyclization in a Flow Reactor.

Published in:

Angewandte Chemie International Edition, 2017, v. 56, n. 21, p. 5839, doi. 10.1002/anie.201700341

By:

Nejedlý, Jindřich;
Šámal, Michal;
Rybáček, Jiří;
Tobrmanová, Miroslava;
Szydlo, Florence;
Coudret, Christophe;
Neumeier, Maria;
Vacek, Jaroslav;
Vacek Chocholoušová, Jana;
Buděšínský, Miloš;
Šaman, David;
Bednárová, Lucie;
Sieger, Ladislav;
Stará, Irena G.;
Starý, Ivo

Publication type:

Article

The Michael-Type Addition Reaction: A Stereocontrolled Construction of a New Quaternary Chiral Center at C(2) of 2-(4-Hydroxybenzyl)cyclohexanone Derivatives.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 11, p. 2017, doi. 10.1002/(SICI)1522-2675(19981111)81:11<2017::AID-HLCA2017>3.0.CO;2-P

By:

Wimmer, Zdeněk;
Šaman, David;
Kuldová, Jelena;
Desmaële, Didier;
d'Angelo, Jean;
Goudey-Perrière, Françoise

Publication type:

Article

Quantitative Analysis of Enzyme-Mediated Hydrolytic Processes and Their Products Using HPLC and NMR Techniques.

Published in:

Helvetica Chimica Acta, 1997, v. 80, n. 3, p. 818, doi. 10.1002/hlca.19970800316

By:

Wimmer, Zdenêk;
Zarevúcka, Marie;
Rejzek, Martin;
Šaman, David;
Zhao, Qiu-Yu;
Legoy, Marie-Dominique

Publication type:

Article

Synthesis and Structure-Activity Relationships of Juvenoids Derived from 2-(4-hydroxybenzyl)cycloalkan-1-ones.

Published in:

Helvetica Chimica Acta, 1994, v. 77, n. 5, p. 1241, doi. 10.1002/hlca.19940770507

By:

Rejzek, Martin;
Wimmer, ZdenêK;
Šaman, David;
Říčánková, Michaela;
Nêmec, Václav

Publication type:

Article

Synthesis and Pharmacological Effects of Diosgenin–Betulinic Acid Conjugates.

Published in:

Molecules, 2020, v. 25, n. 15, p. 3546, doi. 10.3390/molecules25153546

By:

Özdemir, Zülal;
Rybková, Michaela;
Vlk, Martin;
Šaman, David;
Rárová, Lucie;
Wimmer, Zdeněk

Publication type:

Article

Corrigendum: Structural revisions of small molecules reported to cross-link G-quadruplex DNA in vivo reveal a repetitive assignment error in the literature.

Published in:

Scientific Reports, 2017, p. 40471, doi. 10.1038/srep40471

By:

Reyes-Gutiérrez, Paul E.;
Kapal, Tomáš;
Klepetářová, Blanka;
Šaman, David;
Pohl, Radek;
Zawada, Zbigniew;
Kužmová, Erika;
Hájek, Miroslav;
Teplý, Filip

Publication type:

Article

Erratum: Structural revisions of small molecules reported to cross-link G-quadruplex DNA in vivo reveal a repetitive assignment error in the literature.

Published in:

Scientific Reports, 2016, p. 24891, doi. 10.1038/srep24891

By:

Reyes-Gutiérrez, Paul E.;
Kapal, Tomáš;
Klepetářová, Blanka;
Šaman, David;
Pohl, Radek;
Zawada, Zbigniew;
Kužmová, Erika;
Hájek, Miroslav;
Teplý, Filip

Publication type:

Article

Structural revisions of small molecules reported to cross-link G-quadruplex DNA in vivo reveal a repetitive assignment error in the literature.

Published in:

Scientific Reports, 2016, p. 23499, doi. 10.1038/srep23499

By:

Reyes-Gutiérrez, Paul E.;
Kapal, Tomáš;
Klepetářová, Blanka;
Šaman, David;
Pohl, Radek;
Zawada, Zbigniew;
Kužmová, Erika;
Hájek, Miroslav;
Teplý, Filip

Publication type:

Article