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1

Reactions of .alpha.-ketolic and other 21-hydroxy steroids with phosgene. I. Preparation and properties of bis(pregnan-21-yl)carbonates and 17,21-cyclic carbonates

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1972

Language:

english

File:

PDF, 978 KB

english, 1972

2

Detailed study of oxidative esterification and elimination reactions undergone by a steroidal 17α-benzoyloxy-20-oxo-21-aldehyde

Marvin L. Lewbart, Roland S. Annan, Byron H. Arison, James P. Springer, Scott R. Gould

Journal:

Journal of Pharmaceutical Sciences

Year:

1990

Language:

english

File:

PDF, 691 KB

english, 1990

3

Paper chromatographic evaluation of the contribution to polarity of hydroxyl and other groups at the C-17, C-20 and C-21 positions of the pregnane side chain

John J. Schneider, Marvin L. Lewbart

Journal:

Journal of Chromatography A

Year:

1968

Language:

english

File:

PDF, 593 KB

english, 1968

4

The Anti-tumor Effects of Androstene Steroids Exhibit a Strict Structure–Activity Relationship Dependent upon the Orientation of the Hydroxyl Group on Carbon-17

Martin R. Graf, Wentao Jia, Marvin L. Lewbart, Roger M. Loria

Journal:

Chemical Biology & Drug Design

Year:

2009

Language:

english

File:

PDF, 204 KB

english, 2009

5

Paper Chromatography of Steroid Glucuronosides and Sulphates

LEWBART, MARVIN L., SCHNEIDER, JOHN J.

Journal:

Year:

1955

File:

PDF, 113 KB

1955

6

Destruction of Cortisone and Related Steroids by Traces of Copper during Purification Procedures

LEWBART, MARVIN L., MATTOX, VERNON R.

Journal:

Year:

1959

File:

PDF, 439 KB

1959

7

Spontaneous Oxidation of Steroidal 11β-ols to 11-Ketones in the Crystalline State

LEWBART, MARVIN L.

Journal:

Year:

1969

File:

PDF, 236 KB

1969

8

Preparation and properties of steroidal 17,20- and 20,21-acetonides epimeric at C-20. I. Derivatives of 5.beta.-pregnan-3.alpha.-ol

Lewbart, Marvin L., Schneider, John J.

Journal:

Journal of Organic Chemistry

Year:

1969

Language:

english

File:

PDF, 989 KB

english, 1969

9

Determination of urinary free cortisol and cortisone by sequential thin layer and high-performance liquid chromatography

Marvin L. Lewbart, Robert A. Elverson

Journal:

Journal of Steroid Biochemistry

Year:

1982

Language:

english

File:

PDF, 626 KB

english, 1982

10

New Zaffaroni-type solvent systems for chromatography of relatively polar steroids

Vernon R. Mattox, Marvin L. Lewbart

Journal:

Archives of Biochemistry and Biophysics

Year:

1958

Language:

english

File:

PDF, 245 KB

english, 1958

11

Conversion of Steroid-17-yl Glyoxals to Epimeric Glycolic Esters 1

Lewbart, Marvin L., Mattox, Vernon R.

Journal:

Journal of Organic Chemistry

Year:

1963

Language:

english

File:

PDF, 1.12 MB

english, 1963

12

Glycolic Acid Metabolites of Desoxycorticosterone. Assignment of Configuration at C-20 1

Lewbart, Marvin L., Schneider, John J.

Journal:

Journal of Organic Chemistry

Year:

1964

Language:

english

File:

PDF, 1.04 MB

english, 1964

13

Preparation and properties of steroidal 17,20- and 20,21-acetonides epimeric at C-20. III. Dioxolone derivatives of .alpha.-hydroxy acids

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1971

Language:

english

File:

PDF, 801 KB

english, 1971

14

Synthesis, isolation, and characterization of the cis and trans isomers of steroidal 20-hydroxy-17(20)-en-21-aldehydes

Lewbart, Marvin L., Monder, Carl, Boyko, Walter J., Singer, Carol J., Iohan, F.

Journal:

Journal of Organic Chemistry

Year:

1989

Language:

english

File:

PDF, 950 KB

english, 1989

15

Preparation and properties of steroidal 17,20- and 20,21-cyclic carbonates epimeric at C-20

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1972

Language:

english

File:

PDF, 1.17 MB

english, 1972

16

Synthesis of the four pairs of side-chain epoxides epimeric at C-20 derived from 5.beta.-pregnan-3.alpha.-ol

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1968

Language:

english

File:

PDF, 1.71 MB

english, 1968

17

Preparation and properties of .beta.-lactones from steroidal 17,20-dihydroxy-21-oic acids

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1972

Language:

english

File:

PDF, 1.29 MB

english, 1972

18

Reactions of .alpha.-ketols and other 21-hydroxy steroids with phosgene. III. Dehydrohalogenation products from 20-chloro 20,21-cyclic carbonates

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1973

Language:

english

File:

PDF, 1.75 MB

english, 1973

19

ISOLATION FROM URINE AND SYNTHESIS OF TETRAHYDROCORTISONE GLUCURONOSIDE

Schneider, John J., Lewbart, Marvin L., Levitan, Paul, Lieberman, Seymour

Journal:

Journal of the American Chemical Society

Year:

1955

Language:

english

File:

PDF, 239 KB

english, 1955

20

Preparation of sic 20-deoxysteroids in the 3.alpha.-hydroxy-5.beta.-pregnane series and their use in optical rotation studies

Lewbart, Marvin L., Schneider, John Joseph

Journal:

Journal of Organic Chemistry

Year:

1968

Language:

english

File:

PDF, 1.18 MB

english, 1968

21

The Mechanism of the Porter—Silber Reaction. II. Formation of 17-Deoxysteroidal 21-Phenylhydrazones 1

Lewbart, Marvin L., Mattox, Vernon R.

Journal:

Journal of Organic Chemistry

Year:

1964

Language:

english

File:

PDF, 938 KB

english, 1964

22

The Mechanism of the Porter—Silber Reaction. I. Rearrangement of the Dihydroxyacetone Group of Steroids 1

Lewbart, Marvin L., Mattox, Vernon R.

Journal:

Journal of Organic Chemistry

Year:

1964

Language:

english

File:

PDF, 1.15 MB

english, 1964

23

Preparation and properties of steroidal 17,20- and 20,21- acetonides epimeric at C-20. II. Derivatives of cortisol and cortisone

Lewbart, Marvin L., Schneider, John J.

Journal:

Journal of Organic Chemistry

Year:

1969

Language:

english

File:

PDF, 990 KB

english, 1969

24

Glycolic Acids and Esters From Cortisone 1

Lewbart, Marvin L., Mattox, Vernon R.

Journal:

Journal of Organic Chemistry

Year:

1963

Language:

english

File:

PDF, 1.01 MB

english, 1963

25

Reactions of .alpha.-ketols and other 21-hydroxy steroids with phosgene. IV. Formation of 20-chloro-17,20-cyclic carbonates from 17.alpha.-hydroxy-20-ones

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1976

Language:

english

File:

PDF, 948 KB

english, 1976

26

Reactions of .alpha.-ketols and other 21-hydroxy steroids with phosgene. II. Structural requirements in the formation of 20-chloro 20,21- cyclic carbonates from 11-deoxycorticosterone and 11-dehydrocorticosterone

Lewbart, Marvin L.

Journal:

Journal of Organic Chemistry

Year:

1973

Language:

english

File:

PDF, 1.08 MB

english, 1973

27

Oxidation of Steroidal α-Ketols to Glyoxals with Cupric Acetate 1

Lewbart, Marvin L., Mattox, Vernon R.

Journal:

Journal of Organic Chemistry

Year:

1963

Language:

english

File:

PDF, 863 KB

english, 1963

28

Molecular Specificity of 5-Androstenediol as a Systemic Radioprotectant in Mice

Whitnall, Mark H., Villa, Vilmar, Seed, Thomas M., Benjack, James, Miner, Venita, Lewbart, Marvin L., Dowding, Charles A., Jackson, William E.

Journal:

Immunopharmacology and Immunotoxicology

Year:

2005

Language:

english

File:

PDF, 513 KB

english, 2005

29

Inhibition of 7,12-dimethylbenz[ a ]anthracene-initiated and 12- O -tetradecanoylphorbol-13-acetate-promoted skin papilloma formation in mice by dehydroepiandrosterone and two synthetic analogs

G.Schwartz, Arthur, Fairman, Denise K., Polansky, Marcia, Lewbart, Marvin L., Pashko, Laura L.

Journal:

Year:

1989

Language:

english

File:

PDF, 546 KB

english, 1989

30

Molecular Specificity of 5-Androstenediol as a Systemic Radioprotectant in Mice

Whitnall, Mark, Villa, Vilmar, Seed, Thomas, Benjack, James, Miner, Venita, Lewbart, Marvin, Dowding, Charles, Jackson, William

Journal:

Immunopharmacology and Immunotoxicology

Year:

2005

Language:

english

File:

PDF, 458 KB

english, 2005

31

Dehydroepiandrosterone and two structural analogs inhibit 12- O -tetradecanoylphorbol-13-acetate stimulation of prostaglandin E 2 content in mouse skin

Hastings, Laura A., Pashko, Laura L., Lewbart, Marvin L., Schwartz, Arthur G.

Journal:

Year:

1988

Language:

english

File:

PDF, 2.21 MB

english, 1988

32

Inhibition of 12- O -tetradecanoylphorbol-13-acetate-promoted skin tumor formation in mice by 16α-fluoro-5-androsten-17-one and its reversal by deoxyribonucleosides

Pashko, Laura L., Lewbart, Marvin L., Schwartz, Arthur G.

Journal:

Year:

1991

Language:

english

File:

PDF, 2.27 MB

english, 1991

33

THE DETERMINATION OF ALDOSTERONE IN URINE*†

MATTOX, VERNON R., LEWBART, MARVIN L.

Journal:

Journal of Clinical Endocrinology & Metabolism

Year:

1959

Language:

english

File:

PDF, 828 KB

english, 1959

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