W. PFLEIDERER

University of Konstanz

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Ramamurthy Charubala

University of Konstanz

Kazuharu Ienaga

Nippon Zoki (Japan)

Raphael Gottlieb

Interuniversity Institute for Marine Sciences in Eilat

Wolfgang Hutzenlaub

University of Konstanz

Peter Kotsonis

University of Würzburg

Armin Heckel

Boehringer Ingelheim (Germany)

Heinz‐Uli Blank

University of Stuttgart

H.H. Schmidt

University of Giessen

L. Fröhlich

Fraunhofer Institute for Silicate Research

Shahriyar Taghavi‐Moghadam

Southern Research Institute

Cooperative Institutions

University of Konstanz

University of Würzburg

National Institutes of Health

University of Stuttgart

Duke University

National Academy of Sciences of Belarus

Max Planck Society

Instituto de Química Médica

Oak Ridge National Laboratory

Consejo Superior de Investigaciones Científicas

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ChemInform Abstract: PTERIDINES. LXXIII. REACTIVITY OF LUMAZINE 5‐ AND 8‐OXIDES AND 5,8‐DIOXIDES

Chemischer Informationsdienst (1983)

A. PEREZ‐RUBALCABA W. PFLEIDERER

Abstract Die Lumazin‐8‐,oxide (Ia) und (Ib) lassen sich zu den entsprechenden Derivaten (Ic) und (Id) methylieren.

Reactivity

10.1002/chin.198334220

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ChemInform Abstract: Arylation of 1,3‐Dimethyllumazines by Arenediazonium Salts.

ChemInform (1997)

Taiki Sugimoto W. PFLEIDERER

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

10.1002/chin.199741200

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ChemInform Abstract: Purines. Part 14. Reactivity of 8‐Bromo‐3,9‐dimethylxanthine Towards Some Nucleophilic Reagents.

ChemInform (1999)

Shaker Youssef W. PFLEIDERER

Reactivity

Purine metabolism

10.1002/chin.199904159

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ChemInform Abstract: Synthesis and Properties of Pyrrolo[2,3‐d]pyrimidine Derivative and Related Compounds.

Chemischer Informationsdienst (1984)

Z. S. SALIH W. PFLEIDERER

Abstract Die 7‐Desazaxanthine (I) werden elektrophil zu den Ketonen (II) acyliert.

Derivative (finance)

10.1002/chin.198439209

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Ionization constants of heterocyclic substances. Part IX. Protonation of aminopyridones and aminopyrimidones

Journal of the Chemical Society B Physical Organic (1971)

G. B. BARLIN W. PFLEIDERER

Ionization constants and u.v. spectra are reported and discussed for amino-2(and 4)-hydroxypyridines [amino-2-(and 4)-pyridones] and amino-2,4-dihydroxypyrimidines [aminopyrimidine-2,4-diones] and their O- and nuclear N-methyl derivatives.Protonation of 3- and 5-amino-2-hydroxypyridine and 3,4-diamino-2-hydroxypyridine is shown to occur first at the 3(or 5)-amino group, but 4- and 6-amino-2-hydroxypyridine and 2- and 3-amino-4-hydroxypyridine are protonatied first at the oxygen atom. The most basic centre of 4,5-diamino-2,6-dihydroxypyrimidine is shown to be the 5-amino-group.

10.1039/j29710001425

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Citations (22)

ChemInform Abstract: CHEMISTRY OF NATURALLY OCCURRING PTERINS

Chemischer Informationsdienst (1985)

W. PFLEIDERER

10.1002/chin.198549343

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Citations (21)

CCDC 115864: Experimental Crystal Structure Determination

The Cambridge Structural Database (2000)

Shahriyar Taghavi‐Moghadam R. Stumpf Hannes Fischer W. PFLEIDERER

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Crystal (programming language)

10.5517/cc3wkk2

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ChemInform Abstract: Pyrimidines. Part 31. Synthesis, Reactions, and Properties of 6‐Acyl‐1,3‐dimethylpyrrolo(2,3‐d)pyrimidine‐2,4‐diones.

ChemInform (1989)

Z. S. SALIH P. STEGMUELLER W. PFLEIDERER

Abstract The pyrrolopyrimidinediones (I) are treated with the anhydrides (II) to give the acylated compounds (III) which are converted to the esters (V) or the amides (VII).

10.1002/chin.198928207

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ChemInform Abstract: Pteridines. Part 90. Syntheses, Oxidations, Properties, and Reactions of 2-Thiopteridine-4,6,7-trione Derivatives.

ChemInform (1990)

Michael Bartke W. PFLEIDERER

Abstract Cyclocondensation of the 5,6‐diaminopyrimidines (I) with oxalic acid (II) or dimethyl oxalate (V) produces the 2‐thioxopteridine‐4,6,7‐triones (III) and (VI).

Oxalic Acid

10.1002/chin.199007215

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ChemInform Abstract: NUCLEOSIDES, XXVIII. SYNTHESIS AND PROPERTIES OF 2‐THIOLUMAZINE NUCLEOSIDES

Chemischer Informationsdienst (1978)

Ian W. Southon W. PFLEIDERER

Abstract Bei Glykosidierung des Thiolum azins (I) nach verschiedenen Methoden erfolgt nie N‐1‐Substitution.

10.1002/chin.197840245

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