Leon L. Zalkow: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

1

Supercritical extraction of taxol from the bark of Taxus brevifolia

David W. Jennings, Howard M. Deutsch, Leon H. Zalkow, Amyn S. Teja

Journal:

The Journal of Supercritical Fluids

Year:

1992

Language:

english

File:

PDF, 637 KB

english, 1992

2

Synthesis of congeners and prodrugs. 3. Water-soluble prodrugs of taxol with potent antitumor activity

Deutsch, H. M., Glinski, J. A., Hernandez, M., Haugwitz, R. D., Narayanan, V. L., Suffness, M., Zalkow, Leon H.

Journal:

Journal of Medicinal Chemistry

Year:

1989

Language:

english

File:

PDF, 696 KB

english, 1989

3

The Synthesis of Bicyclo [2,2,2]-2,5-octadiene 1,2

Hine, Jack, Brown, John A., Zalkow, Leon H., Gardner, William E., Hine, Mildred

Journal:

Journal of the American Chemical Society

Year:

1955

Language:

english

File:

PDF, 668 KB

english, 1955

4

Supercritical extraction of crotalaria spectabilis in the cross-over region

Steven T. Schaeffer, Leon H. Zalkow, Amyn S. Teja

Journal:

Year:

1988

Language:

english

File:

PDF, 242 KB

english, 1988

5

Extraction of monocrotaline from Crotalaria spectabilis using supercritical carbon dioxide and carbon dioxide–ethanol mixtures

Steven T. Schaeffer, Leon H. Zalkow, Amyn S. Teja

Journal:

Biotechnology and Bioengineering

Year:

1989

Language:

english

File:

PDF, 600 KB

english, 1989

6

ChemInform Abstract: An Improved Synthesis of Hypericin and Related Compounds.

Ewa Gruszecka-Kowalik, Leon H. Zalkow

Journal:

Year:

2000

File:

PDF, 25 KB

2000

7

ChemInform Abstract: Novel Pyrrolo-quinoline Derivatives as Potent Inhibitors for PI3-Kinase Related Kinases.

Hairuo Peng, Doeg-Il Kim, Jann N. Sarkaria, Yong-Seo Cho, Robert T. Abraham, Leon H. Zalkow

Journal:

Year:

2002

Language:

english

File:

PDF, 32 KB

english, 2002

8

Tumor inhibitors I: Preliminary investigation of antitumor activity of Sarracenia flava

D. Howard Miles, Udom Kokpol, Leon H. Zalkow, Steven J. Steindel, James B. Nabors

Journal:

Journal of Pharmaceutical Sciences

Year:

1974

Language:

english

File:

PDF, 298 KB

english, 1974

9

Polysaccharides from Cannabis sativa active in lowering intraocular pressure

Linda C. Hodges, Howard M. Deutsch, Keith Green, Leon H. Zalkow

Journal:

Carbohydrate Polymers

Year:

1985

Language:

english

File:

PDF, 577 KB

english, 1985

10

Solubility of monocrotaline in supercritical carbon dioxide and carbon dioxide—ethanol mixtures

Steven T. Schaeffer, Leon H. Zalkow, Amyn S. Teja

Journal:

Fluid Phase Equilibria

Year:

1988

Language:

english

File:

PDF, 691 KB

english, 1988

11

Modelling of the supercritical fluid extraction of monocrotaline from Crotalaria Spectabilis

Steven T. Schaeffer, Leon H. Zalkow, Amyn S. Teja

Journal:

The Journal of Supercritical Fluids

Year:

1989

Language:

english

File:

PDF, 634 KB

english, 1989

12

Synthesis of 3-[(N-carboalkoxy)ethylamino]-indazole-dione derivatives and their biological activities on human liver carbonyl reductase

Solomon Berhe, Andrew Slupe, Choice Luster, Henry A. Charlier Jr., Don L. Warner, Leon H. Zalkow, Edward M. Burgess, Nkechi M. Enwerem, Oladapo Bakare

Journal:

Bioorganic & Medicinal Chemistry

Year:

2010

Language:

english

File:

PDF, 1.03 MB

english, 2010

13

Cdc25A Protein phosphatase inhibitors from anomalous ozonolysis of 5,6-seco-5-oxo-3-cholesten-6-oic acid

Hairuo Peng, Diane M Otterness, Robert T Abraham, Leon H Zalkow

Journal:

Year:

2001

Language:

english

File:

PDF, 124 KB

english, 2001

14

The synthesis and absolute configuration of juniper camphor and selin-11-en-4α-ol. The structure of intermedeol

G.L. Chetty, V.B. Zalkow, Leon H. Zalkow

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 162 KB

english, 1968

15

Long-range hyperfine splitting in bicyclic semidiones

Glen A. Russell, George Holland, K.-Y. Chang, Leon H. Zalkow

Journal:

Tetrahedron Letters

Year:

1967

Language:

english

File:

PDF, 196 KB

english, 1967

16

The synthesis of heliotridine and related alkaloids

Jan A. Glinskil, Leon H. Zalkow

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 257 KB

english, 1985

17

3β-Hydroxy-6-aza-cholestane and related analogues as phosphatidylinositol specific phospholipase C (PI-PLC) inhibitors with antitumor activity

Wenge Xie, Hairuo Peng, Leon H. Zalkow, Yu-Hua Li, Cheng Zhu, Garth Powis, Mark Kunkel

Journal:

Bioorganic & Medicinal Chemistry

Year:

2000

Language:

english

File:

PDF, 205 KB

english, 2000

18

Structure–activity relationship of Aza-steroids as PI-PLC inhibitors

Wenge Xie, Hairuo Peng, Deog-Il Kim, Mark Kunkel, Garth Powis, Leon H. Zalkow

Journal:

Bioorganic & Medicinal Chemistry

Year:

2001

Language:

english

File:

PDF, 316 KB

english, 2001

19

Novel pyrrolo-quinoline derivatives as potent inhibitors for PI3-kinase related kinases

Hairuo Peng, Doeg-Il Kim, Jann N Sarkaria, Yong-Seo Cho, Robert T Abraham, Leon H Zalkow

Journal:

Bioorganic & Medicinal Chemistry

Year:

2002

Language:

english

File:

PDF, 183 KB

english, 2002

20

Steroidal derived acids as inhibitors of human Cdc25A protein phosphatase

Hairuo Peng, Wenge Xie, Deog-Il Kim, Leon H. Zalkow, Garth Powis, Diane M. Otterness, Robert T. Abraham

Journal:

Bioorganic & Medicinal Chemistry

Year:

2000

Language:

english

File:

PDF, 294 KB

english, 2000

21

Chemical ecology ofReticulitermes flavipes(Kollar) andR. virginicus(Banks) (Rhinotermitidae)

Leon H. Zalkow, Ralph W. Howard, Leslie T. Gelbaum, Maureen M. Gordon, Howard M. Deutsch, Murray S. Blum

Journal:

Journal of Chemical Ecology

Year:

1981

Language:

english

File:

PDF, 598 KB

english, 1981

22

Cuticular hydrocarbons ofReticulitermes virginicus(Banks) and their role as potential species- and caste-recognition cues

Ralph W. Howard, C. A. McDaniel, Dennis R. Nelson, Gary J. Blomquist, Leslie T. Gelbaum, Leon H. Zalkow

Journal:

Journal of Chemical Ecology

Year:

1982

Language:

english

File:

PDF, 728 KB

english, 1982

23

Supercritical extraction and HPLC analysis of taxol from Taxus brevifolia using nitrous oxide and nitrous oxide + ethanol mixtures

Vishnu Vandana, Amyn S. Teja, Leon H. Zalkow

Journal:

Fluid Phase Equilibria

Year:

1996

Language:

english

File:

PDF, 415 KB

english, 1996

24

Synthesis and MEK1 inhibitory activities of imido-Substituted 2-chloro-1,4-naphthoquinones

Oladapo Bakare, Curtis L. Ashendel, Hairuo Peng, Leon H. Zalkow, Edward M. Burgess

Journal:

Bioorganic & Medicinal Chemistry

Year:

2003

Language:

english

File:

PDF, 188 KB

english, 2003

25

Crystal and molecular structures of (20R)-20-aminopregn-5-en-3β-ol and (20S)-20-aminopregn-5-en-3β-ol hydrochloride

Ewa Gruszecka-Kowalik, Donald G. VanDerveer, Leon H. Zalkow

Journal:

Journal of Chemical Crystallography

Year:

2000

Language:

english

File:

PDF, 103 KB

english, 2000

26

Model systems for detecting the hepatic toxicity of pyrrolizidine alkaloids and pyrrolizidine alkaloid N-oxides

David J. Moore, Kenneth P. Batts, Leon L. Zalkow, G.Thomas Fortune Jr., Garth Powis

Journal:

Toxicology and Applied Pharmacology

Year:

1989

Language:

english

File:

PDF, 5.13 MB

english, 1989

27

Inhibition of human immunodeficiency virus replication by the sulfonated stilbene dye resobene

Susan M Halliday, Carol Lackman-Smith, John P Bader, William G Rice, David J Clanton, Leon H Zalkow, Robert W Buckheit Jr.

Journal:

Antiviral Research

Year:

1996

Language:

english

File:

PDF, 346 KB

english, 1996

28

AN IMPROVED SYNTHESIS OF HYPERICIN AND RELATED COMPOUNDS

Gruszecka-Kowalik, Ewa, Zalkow, Leon H.

Journal:

Organic Preparations and Procedures International

Year:

2000

Language:

english

File:

PDF, 359 KB

english, 2000

29

Quinobene, a new potent anti-HIV agent

Ewa Gruszecka-Kowalik, Rudiger D. Haugwitz, Leon H. Zalkow

Journal:

Biochemical and Biophysical Research Communications

Year:

1992

Language:

english

File:

PDF, 622 KB

english, 1992

30

Synthesis and pharmacology of irreversible affinity labels as potential cocaine antagonists: aryl 1,4-dialkylpiperazines related to GBR-12783

Howard M. Deutsch, Margaret M. Schweri, Christopher T. Culbertson, Leon H. Zalkow

Journal:

European Journal of Pharmacology

Year:

1992

Language:

english

File:

PDF, 1.05 MB

english, 1992

31

Synthesis of pyrrolizidine alkaloids indicine, intermedine, lycopsamine, and analogs and their N-oxides. Potential antitumor agents

Zalkow, Leon H., Glinski, Jan A., Gelbaum, Leslie T., Fleischmann, Thomas J., McGowan, Laureen S., Gordon, Maureen M.

Journal:

Journal of Medicinal Chemistry

Year:

1985

Language:

english

File:

PDF, 1.19 MB

english, 1985

32

Chemistry of the Carotane Sesquiterpenes V. Biosimulated Conversions

Zalkow, Leon H., Clower, Marion G., Gordon, Maureen M., Gelbaum, Leslie T.

Journal:

Journal of Natural Products

Year:

1980

Language:

english

File:

PDF, 1.05 MB

english, 1980

33

Terpenoids. XLVIII. 1 The Absolute Configuration of Eremophilone and Related Sesquiterpenes 2

Zalkow, Leon H., Markley, F. X., Djerassi, Carl

Journal:

Journal of the American Chemical Society

Year:

1960

Language:

english

File:

PDF, 1.15 MB

english, 1960

34

Pyrrolizidine Alkaloids from Heliotropium rotundifolium

Asibal, Clarita F., Gelbaum, Leslie T., Zalkow, Leon H.

Journal:

Journal of Natural Products

Year:

1989

Language:

english

File:

PDF, 327 KB

english, 1989

35

Macrocyclic Pyrrolizidine Alkaloids from Senecio anonymus. Separation of a Complex Alkaloid Extract Using Droplet Counter-Current Chromatography

Zalkow, Leon H., Asibal, Clarita F., Glinski, Jan A., Bonetti, Sandra J., Gelbaum, Leslie T., VanDerveer, Donald, Powis, Garth

Journal:

Journal of Natural Products

Year:

1988

Language:

english

File:

PDF, 686 KB

english, 1988

36

Pyrrolizidine Alkaloids from Cynoglossum creticum. Synthesis of the Pyrrolizidine Alkaloids Echinatine, Rinderine, and Analogues

Asibal, Clarita F., Glinski, Jan A., Gelbaum, Leslie T., Zalkow, Leon H.

Journal:

Journal of Natural Products

Year:

1989

Language:

english

File:

PDF, 560 KB

english, 1989

37

Interconversion of eremophilone and isoeremophilone and related reactions

Zalkow, Leon H., Chetty, G. L.

Journal:

Journal of Organic Chemistry

Year:

1975

Language:

english

File:

PDF, 302 KB

english, 1975

38

Synthesis of 2-Methyl-(Z)-4-(phenylimino)naphth[2,3-d]oxazol-9-one, a Monoimine Quinone with Selective Cytotoxicity toward Cancer Cells

Benedetti-Doctorovich, Violeta, Burgess, Edward M., Lambropoulos, John, Lednicer, Daniel, Van Derveer, Donald, Zalkow, Leon H.

Journal:

Journal of Medicinal Chemistry

Year:

1994

Language:

english

File:

PDF, 305 KB

english, 1994

39

Terpenes. XX. Synthesis of postulated tetracarbocyclic diterpenoids

Zalkow, Leon H., Oehlschlager, Allan C.

Journal:

Journal of Organic Chemistry

Year:

1967

Language:

english

File:

PDF, 481 KB

english, 1967

40

Semisynthetic pyrrolizidine alkaloid N-oxide antitumor agents. Esters of heliotridine

Zalkow, Leon H., Glinski, Jan A., Gelbaum, Leslie T., Moore, David, Melder, Deborah, Powis, Garth

Journal:

Journal of Medicinal Chemistry

Year:

1988

Language:

english

File:

PDF, 1.05 MB

english, 1988

41

Molecular Similarity from Atomic Electrostatic Multipole Comparisons. Application to Anti-HIV Drugs

Burgess, Edward M., Ruell, J. A., Zalkow, Leon H., Haugwitz, Rudiger D.

Journal:

Journal of Medicinal Chemistry

Year:

1995

Language:

english

File:

PDF, 1.26 MB

english, 1995

42

A Phytochemical Investigation of Bothriochloa intermedia

Zalkow, Leon H., Baxter, James T., McClure, Richard James, Gordon, Maureen M.

Journal:

Journal of Natural Products

Year:

1980

Language:

english

File:

PDF, 894 KB

english, 1980

43

Terpenes. XIX. Synthesis of diterpenoid alkaloids

Zalkow, Leon H., Girotra, Narindar N., Zalkow, Vera B.

Journal:

Journal of Organic Chemistry

Year:

1967

Language:

english

File:

PDF, 424 KB

english, 1967

44

Syntheses and Biological Activities of a Novel Group of Steroidal Derived Inhibitors for Human CDC25A Protein Phosphatase 1

Peng, Hairuo, Xie, Wenge, Otterness, Diane M., Cogswell, John P., McConnell, Randy T., Carter, H. Luke, Powis, Garth, Abraham, Robert T., Zalkow, Leon H.

Journal:

Journal of Medicinal Chemistry

Year:

2001

Language:

english

File:

PDF, 210 KB

english, 2001

45

Novel CDC25A Phosphatase Inhibitors from Pyrolysis of 3-α-Azido-B-homo-6-oxa-4-cholesten-7-one on Silica Gel

Peng, Hairuo, Zalkow, Leon H., Abraham, Robert T., Powis, Garth

Journal:

Journal of Medicinal Chemistry

Year:

1999

Language:

english

File:

PDF, 16 KB

english, 1999

46

Synthesis of Naphthoquinoles as Potential Antitumor Agents Related to Jacaranone

Deutsch, Howard M., Zalkow, Leon H.

Journal:

Journal of Natural Products

Year:

1982

Language:

english

File:

PDF, 282 KB

english, 1982

47

Semisynthetic pyrrolizidine alkaloid antitumor agents

Gelbaum, Leslie T., Gordon, Maureen M., Miles, Mark, Zalkow, Leon H.

Journal:

Journal of Organic Chemistry

Year:

1982

Language:

english

File:

PDF, 470 KB

english, 1982

48

The Reaction of Bicyclo [2.2.2]octene with N-Bromosuccinimide

LeBel, Norman A., Huber, Joel E., Zalkow, Leon H.

Journal:

Journal of the American Chemical Society

Year:

1962

Language:

english

File:

PDF, 1.06 MB

english, 1962

49

Supercritical fluid isolation of monocrotaline from Crotalaria spectabilis using ion-exchange resins

Schaeffer, Steven T., Zalkow, Leon H., Teja, Amyn S.

Journal:

Industrial & Engineering Chemistry Research

Year:

1989

Language:

english

File:

PDF, 554 KB

english, 1989

50

Acetylanonamine, a New Secopyrrolizidine Alkaloid from Senecio anonymus

Asibal, Clarita F., Zalkow, Leon H., Gelbaum, Leslie T.

Journal:

Journal of Natural Products

Year:

1991

Language:

english

File:

PDF, 165 KB

english, 1991