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1

Cytokinins: Structure/activity relationships

Folke Skoog, Hamzi Q. Hamzi, Alicja M. Szweykowska, Nelson J. Leonard, Kermit L. Carraway, Tozo Fujii, John P. Helgeson, Richard N. Loeppky

Journal:

Year:

1967

Language:

english

File:

PDF, 2.32 MB

english, 1967

2

Nitrosative Cleavage of Tertiary Amines

Smith, Peter A. S., Loeppky, Richard N.

Journal:

Journal of the American Chemical Society

Year:

1967

Language:

english

File:

PDF, 1.53 MB

english, 1967

3

ChemInform Abstract: The Synthesis of N-Arylcyclopropylamines via Palladium-Catalyzed C—N Bond Formation.

Wenge Cui, Richard N. Loeppky

Journal:

Year:

2001

File:

PDF, 30 KB

2001

4

The synthesis of deuterium-labeled N-nitrosodiethanolamine and N-nitroso-2-hydroxymorpholine

Richard N. Loeppky, Heping Xiong

Journal:

Journal of Labelled Compounds and Radiopharmaceuticals

Year:

1994

Language:

english

File:

PDF, 619 KB

english, 1994

5

Genotoxicity of glycidamide in comparison to (±)-anti-benzo[a]pyrene-7,8-dihydrodiol-9,10-epoxide and α-acetoxy-N-nitroso-diethanolamine in human blood and in mammalian V79-cells

Silke Thielen, Matthias Baum, Michelle Hoffmann, Richard N. Loeppky, Gerhard Eisenbrand

Journal:

Molecular Nutrition & Food Research

Year:

2006

Language:

english

File:

PDF, 1.14 MB

english, 2006

6

Nitrosamines, N-nitrosoamides, and diazonium ions from tri-N-substituted amidines

Richard N. Loeppky, Li Yu

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 251 KB

english, 1990

7

α-Chloroxulfoxides

Richard N. Loeppky, David C.K. Chang

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 202 KB

english, 1968

8

The synthesis of highly reactive, multi-functional α,β-epoxy- and α-acetoxy-nitrosamines

Misun Park, Feng Gu, Richard N. Loeppky

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 351 KB

english, 1998

9

Identification of an interfering compound in the gas—liquid chromatographic determination of N2,N2-dimethylguanosine

Kenneth R. Leimer, Richard N. Loeppky, Charles W. Gehrke

Journal:

Journal of Chromatography B: Biomedical Sciences and Applications

Year:

1977

Language:

english

File:

PDF, 342 KB

english, 1977

10

The synthesis of N-arylcyclopropylamines via palladium-catalyzed C–N bond formation

Wenge Cui, Richard N Loeppky

Journal:

Year:

2001

Language:

english

File:

PDF, 79 KB

english, 2001

11

The nitrosation of imidazolines and oxazolines

Richard N Loeppky, Wenge Cui

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 255 KB

english, 1998

12

Nucleoside and DNA Adducts from N-Nitrosotolazoline

Loeppky, Richard N., Shi, Jianzheng

Journal:

Chemical Research in Toxicology

Year:

2008

Language:

english

File:

PDF, 800 KB

english, 2008

13

[ACS Symposium Series] Nitrosamines and Related N -Nitroso Compounds Volume 553 (Chemistry and Biochemistry) || Nitrosamine and N -Nitroso Compound Chemistry and Biochemistry

Loeppky, Richard N., Michejda, Christopher J.

Year:

1994

Language:

english

File:

PDF, 2.02 MB

english, 1994

14

[ACS Symposium Series] Nitrosamines and Related N -Nitroso Compounds Volume 553 (Chemistry and Biochemistry) || DNA Damage and Cytotoxicity Caused by Nitric Oxide

Loeppky, Richard N., Michejda, Christopher J.

Year:

1994

Language:

english

File:

PDF, 1.37 MB

english, 1994

15

Comparison of noninvasive pulsed Doppler and Fick measurements of stroke volume in cardiac patients

Jack A Loeppky, David E Hoekenga, E.Richard Greene, Ulrich C Luft

Journal:

American Heart Journal

Year:

1984

Language:

english

File:

PDF, 1002 KB

english, 1984

16

N -Alkyl- N -Cyclopropylanilines as Mechanistic Probes in the Nitrosation of N,N -Dialkyl Aromatic Amines

Loeppky, Richard N., Elomari, Saleh

Journal:

Journal of Organic Chemistry

Year:

2000

Language:

english

File:

PDF, 181 KB

english, 2000

17

Chemistry in Cancer Research: A Vital Partnership

Sturla, Shana J., Irwin, John J., Loeppky, Richard N., Mulvihill, Mark J., Searcey, Mark

Journal:

ACS Chemical Biology

Year:

2007

Language:

english

File:

PDF, 261 KB

english, 2007

18

The mechanistic origin of regiochemical changes in the nitrosative N-dealkylation of N,N-dialkyl aromatic amines

Teuten, Emma L., Loeppky, Richard N.

Journal:

Organic & Biomolecular Chemistry

Year:

2005

Language:

english

File:

PDF, 356 KB

english, 2005

19

[ACS Symposium Series] Nitrosamines and Related N -Nitroso Compounds Volume 553 (Chemistry and Biochemistry) || Radical Cations in Nitrosation of tert -Dialkyl Aromatic Amines

Loeppky, Richard N., Michejda, Christopher J.

Year:

1994

Language:

english

File:

PDF, 293 KB

english, 1994

20

Diazonium ion derived products from the cerium(IV) oxidation of .beta.-hydroxy nitrosamines

Loeppky, Richard N., Li, Elaine

Journal:

Chemical Research in Toxicology

Year:

1988

Language:

english

File:

PDF, 313 KB

english, 1988

21

Nitrosation Chemistry of Pyrroline, 2-Imidazoline, and 2-Oxazoline: Theoretical Curtin−Hammett Analysis of Retro-Ene and Solvent-Assisted C−X Cleavage Reactions of α-Hydroxy- N -Nitrosamines

Wu, Hong, Loeppky, Richard N., Glaser, Rainer

Journal:

Journal of Organic Chemistry

Year:

2005

Language:

english

File:

PDF, 576 KB

english, 2005

22

[ACS Symposium Series] Nitrosamines and Related N -Nitroso Compounds Volume 553 (Chemistry and Biochemistry) || Nitrosamines and Related N -Nitroso Compounds, Copyright, 1994 Advisory Board, Foreword

Loeppky, Richard N., Michejda, Christopher J.

Year:

1994

Language:

english

File:

PDF, 353 KB

english, 1994

23

Development of Cytokinin Activity by Rearrangement of 1-Substituted Adenines to 6-Substituted Aminopurines: Inactivation by N6, 1-Cyclization

Nelson J. Leonard, Selim Achmatowicz, Richard N. Loeppky, Kermit L. Carraway, Wolfgang A. H. Grimm, Alicja Szweykowska, Hamzi Q. Hamzi and Folke Skoog

Journal:

Proceedings of the National Academy of Sciences

Year:

1966

Language:

english

File:

PDF, 445 KB

english, 1966

24

[ACS Symposium Series] Nitrosamines and Related N -Nitroso Compounds Volume 553 (Chemistry and Biochemistry) || N -Nitrosodiphenylamine in Diphenylamine-Treated Apples

Loeppky, Richard N., Michejda, Christopher J.

Year:

1994

Language:

english

File:

PDF, 279 KB

english, 1994

25

Evidence for Radical Cations in Linked Mechanisms of N , N -Dialkyl Aromatic Amine Nitration and Nitrosative Dealkylation

Loeppky, Richard N., Singh, Sukhjeet P., Elomari, Saleh, Hastings, Riley, Theiss, Thomas E.

Journal:

Journal of the American Chemical Society

Year:

1998

Language:

english

File:

PDF, 190 KB

english, 1998

26

The 5-hydroxy-1,2,3-oxadiazolinium ion: neighboring group interaction between N-nitroso and aldehyde carbonyl

Loeppky, Richard N., Fleischmann, Eugene D., Adams, John E., Tomasik, Witold., Schlemper, Elmer O., Wong, Tuck C.

Journal:

Journal of the American Chemical Society

Year:

1988

Language:

english

File:

PDF, 842 KB

english, 1988

27

Kinetic demonstration of the syn effect in .beta.-hydroxynitrosamine fragmentation

Loeppky, Richard N., Hazlitt, Lonnie G.

Journal:

Journal of Organic Chemistry

Year:

1982

Language:

english

File:

PDF, 1.45 MB

english, 1982

28

Purine Nucleosides. VIII. Reinvestigation of the Position of Glycosidation in Certain Synthetic “7”-Substituted 6-Dimethylaminopurine Nucleosides Related to Puromycin

Townsend, Leroy B., Robins, Roland K., Loeppky, Richard N., Leonard, Nelson J.

Journal:

Journal of the American Chemical Society

Year:

1964

Language:

english

File:

PDF, 712 KB

english, 1964

29

N -Nitrosotolazoline: Decomposition Studies of a Typical N -Nitrosoimidazoline

Loeppky, Richard N., Shi, Jianzheng

Journal:

Chemical Research in Toxicology

Year:

2008

Language:

english

File:

PDF, 286 KB

english, 2008

30

DNA Guanine Adducts from 3-Methyl-1,2,3-oxadiazolinium Ions

Loeppky, Richard N., Yu, Li, Gu, Feng, Ye, Qiuping

Journal:

Journal of the American Chemical Society

Year:

1996

Language:

english

File:

PDF, 410 KB

english, 1996

31

Thiol Oxidation by 1,2,3-Oxadiazolinium Ions, Presumed Carcinogens

Loeppky, Richard N., Srinivasan, Aloka

Journal:

Chemical Research in Toxicology

Year:

1995

Language:

english

File:

PDF, 448 KB

english, 1995

32

Nitrosoaziridinium ion isomerization: dihydrodiazete-N-oxides and azoxyalkenes from aziridine nitrosation

Loeppky, Richard N., Feng, Qing, Srinivasan, Aloka, Glaser, Rainer, Barnes, Charles L., Sharp, Paul R.

Journal:

Journal of the American Chemical Society

Year:

1991

Language:

english

File:

PDF, 283 KB

english, 1991

33

Amidine Nitrosation

Loeppky, Richard N., Yu, Hongbin

Journal:

Journal of Organic Chemistry

Year:

2004

Language:

english

File:

PDF, 185 KB

english, 2004

34

Microsome-Mediated Oxidation of N -Nitrosodiethanolamine (NDELA), a Bident Carcinogen

Loeppky, Richard N., Goelzer, Petra

Journal:

Chemical Research in Toxicology

Year:

2002

Language:

english

File:

PDF, 171 KB

english, 2002

35

Silver tetrafluoroborate induced rearrangement of N-chloroketimines

Loeppky, Richard N., Rotman, Miriam

Journal:

Journal of Organic Chemistry

Year:

1967

Language:

english

File:

PDF, 1.16 MB

english, 1967

36

DNA Adducts from N- Nitrosodiethanolamine and Related β-Oxidized Nitrosamines in Vivo: 32 P-Postlabeling Methods for Glyoxal- and O 6 -Hydroxyethyldeoxyguanosine Adducts

Loeppky, Richard N., Ye, Qiuping, Goelzer, Petra, Chen, Yuen

Journal:

Chemical Research in Toxicology

Year:

2002

Language:

english

File:

PDF, 135 KB

english, 2002

37

The Carcinogenic Significance of Reactive Intermediates Derived from 3-Acetoxy- and 5-Acetoxy-2-hydroxy- N- nitrosomorpholine

Loeppky, Richard N., Sukhtankar, Sunil, Gu, Feng, Park, Misun

Journal:

Chemical Research in Toxicology

Year:

2005

Language:

english

File:

PDF, 236 KB

english, 2005

38

Probing the Mechanism of the Carcinogenic Activation of N -Nitrosodiethanolamine with Deuterium Isotope Effects: In Vivo Induction of DNA Single-Strand Breaks and Related in Vitro Assays

Loeppky, Richard N., Fuchs, Anne, Janzowski, Christine, Humberd, Christina, Goelzer, Petra, Schneider, Heiko, Eisenbrand, Gerhard

Journal:

Chemical Research in Toxicology

Year:

1998

Language:

english

File:

PDF, 149 KB

english, 1998

39

In Memoriam: Christopher J. Michejda (December 19, 1937−January 9, 2007)

Tarasova, Nadya I., Loeppky, Richard N., Byrd, R. Andrew, Keefer, Larry K.

Journal:

Chemical Research in Toxicology

Year:

2007

Language:

english

File:

PDF, 148 KB

english, 2007

40

A Diazonium Ion Cascade from the Nitrosation of Tolazoline, An Imidazoline-Containing Drug

Loeppky, Richard N., Shi, Jianzheng, Barnes, Charles L., Geddam, Sailaja

Journal:

Chemical Research in Toxicology

Year:

2008

Language:

english

File:

PDF, 301 KB

english, 2008

41

Acid-catalyzed rearrangements of N-nitrosodehydromorpholine

Loeppky, Richard N., Xiong, Heping

Journal:

Journal of Organic Chemistry

Year:

1995

Language:

english

File:

PDF, 733 KB

english, 1995

42

Pyrroles as effective agents for blocking amine nitrosation

Wilcox, Allan L., Bao, Yen T., Loeppky, Richard N.

Journal:

Chemical Research in Toxicology

Year:

1991

Language:

english

File:

PDF, 1.24 MB

english, 1991

43

Blocking nitrosamine formation with polymers

Bao, Yen T., Loeppky, Richard N.

Journal:

Chemical Research in Toxicology

Year:

1991

Language:

english

File:

PDF, 1.06 MB

english, 1991

44

Nitrosation of 1-substituted aziridines

Loeppky, Richard N., Smith, David H.

Journal:

Journal of Organic Chemistry

Year:

1976

Language:

english

File:

PDF, 1.03 MB

english, 1976

45

Mass Spectrometric Methodology for the Determination of Glyoxaldeoxyguanosine and O 6 -Hydroxyethyldeoxyguanosine DNA Adducts Produced by Nitrosamine Bident Carcinogens

Dennehy, Michelle K., Loeppky, Richard N.

Journal:

Chemical Research in Toxicology

Year:

2005

Language:

english

File:

PDF, 341 KB

english, 2005

46

An Aziridinium Ion Intermediate in the Nitrosation of a Hexetidine Model

Loeppky, Richard N., Bae, Jae-Young

Journal:

Chemical Research in Toxicology

Year:

1994

Language:

english

File:

PDF, 952 KB

english, 1994

47

Complete nuclear magnetic resonance signal assignments and initial structural studies of [13C]methyl-enriched transfer ribonucleic acid

Tompson, Julia G., Hayashi, Fumikaza, Paukstelis, Joseph V., Loeppky, Richard N., Agris, Paul F.

Journal:

Year:

1979

Language:

english

File:

PDF, 834 KB

english, 1979

48

In Vitro DNA Deamination by α-Nitrosaminoaldehydes Determined by GC/MS-SIM Quantitation

Park, Misun, Loeppky, Richard N.

Journal:

Chemical Research in Toxicology

Year:

2000

Language:

english

File:

PDF, 225 KB

english, 2000

49

[ACS Symposium Series] Nitrosamines and Related N -Nitroso Compounds Volume 553 (Chemistry and Biochemistry) || Prevention of Nitrosamine Exposure in the Rubber Industry

Loeppky, Richard N., Michejda, Christopher J.

Year:

1994

Language:

english

File:

PDF, 841 KB

english, 1994

50

Studies Towards the Synthesis of Medermycin via Dötz Benzannulation

Qu, Chunrong, Tang, Erqing, Loeppky, Richard, Deng, Zixin, Pulley, Shon R., Hong, Xuechuan

Journal:

Year:

2015

Language:

english

File:

PDF, 431 KB

english, 2015