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Synthesis of phthalates of betulinic acid and betulin with cytotoxic activity

Bioorganic & medicinal chemistry, 2005-05, Vol.13 (10), p.3447-3454

2005

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Classical bile acids in animals, beta-phocaecholic acid in ducks

Comparative biochemistry and physiology. B, Comparative biochemistry, 1989, Vol.92 (2), p.357-360

1989

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Use of cyclodextrins in isotachophoresis : VI. Cyclodextrins as leading electrolyte additives for the separation of bile acids

Journal of Chromatography A, 1988, Vol.450 (3), p.373-379

1988

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Synthesis of 24-(Piperidin-1-yl, Morpholin-4-yl and 4-Methylpiperazin-1-yl)-5β-cholan-3α-ols and Four Hydroxylated 23-(4,5-Dihydroimidazol-2-yl)-24-nor-5β-cholanes

Collection of Czechoslovak chemical communications, 1997, Vol.62 (3), p.471-478

1997

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ChemInform Abstract: TRITERPENE 26. MITT. MITBETEILIGUNG O‐HALTIGER GRUPPEN IN 28‐POSITRON BEI DER ADDITION VON BROM AN DIE DOPPELBINDUNG VON 20(21)‐TARAXASTEN‐DERIVATEN

Chemischer Informationsdienst, 1972-09, Vol.3 (37)

1972

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Oxidation of 3β,28-Diacetoxy-18-lupen-21-one with Peroxy Acids: A Way to Des-E-lupane Derivatives

Collection of Czechoslovak chemical communications, 1993-10, Vol.58 (10), p.2505-2516

1993

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Preparation of 2,3-Secodiacids of the Lupane Series

Collection of Czechoslovak chemical communications, 1994, Vol.59 (6), p.1420-1429

1994

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ChemInform Abstract: Triterpenes. Part 99. 21,22-Disubstituted 18α,19βH-Ursane Derivatives with Oxabicyclooctane System in Ring E

ChemInform, 1993-06, Vol.24 (24), p.no-no

1993

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Structure of Dimeric Compounds Obtained from 3β-Acetoxy-21,22-dioxo-18α,19βH-ursan-28,20β-olide

Collection of Czechoslovak chemical communications, 1993, Vol.58 (7), p.1675-1691

1993

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ChemInform Abstract: Triterpenes. Part 107. Glycosylation of Triterpene Alcohols and Acids of the Lupane and A-Secolupane Series

ChemInform, 1998-03, Vol.29 (13), p.no-no

1998

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ChemInform Abstract: Reactions of 21-Acetoxy-16α,17α-epoxypregn-4-ene-3,20- dione with Nitrogen-Containing Nucleophilic Agents

ChemInform, 1997-12, Vol.28 (50), p.no-no

1997

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ChemInform Abstract: Synthesis of 24-(Piperidin-1-yl, Morpholin-4-yl and 4-Methylpiperazin- 1-yl)-5β-cholan-3α-ols and Four Hydroxylated 23-(4,5- Dihydroimidazol-2-yl)-24-nor-5β-cholanes

ChemInform, 1997-07, Vol.28 (31), p.no-no

1997

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Indirect Iodination of Estrogenes via Triazenes

Collection of Czechoslovak chemical communications, 1993-11, Vol.58 (11), p.2729-2736

1993

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ChemInform Abstract: TRITERPENES. PART LVII. THE PREPARATION OF 19αH‐LUPEOL ACETATE AND ITS DERIVATIVES

Chemischer Informationsdienst, 1978-11, Vol.9 (48)

1978

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Synthesis of 16-(4-iodophenyl)hexadecanoic acid

Collection of Czechoslovak chemical communications, 1986-04, Vol.51 (4), p.872-878

1986

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ChemInform Abstract: Triterpenes. Part 90. Conversion of Betulin into Careyagenolide (2α,3β‐Dihydroxy‐18α,19βH‐ursan‐28,20β‐olide)

ChemInform, 1989-08, Vol.20 (32), p.no-no

1989

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ChemInform Abstract: TRITERPENES PART 44, OXIDATIVE CLEAVAGE OF 22‐HYDROXYMETHYLENE‐21‐KETONES OF THE 20,28BETA‐EPOXY‐18ALPHA,19BETA H‐URSANE SERIES

Chemischer Informationsdienst, 1975-12, Vol.6 (49)

1975

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Conformation of ring A of 19β,28-epoxy-18α-oleanan-3-one in solution and in the solid state. Crystal structure and carbon-deuterium stretching frequencies

Collection of Czechoslovak chemical communications, 1989, Vol.54 (3), p.737-750

1989

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Conversion of betulin into careyagenolide (2α,3β-dihydroxy-18α,19βH-ursan-28,20β-olide)

Collection of Czechoslovak chemical communications, 1989, Vol.54 (4), p.1036-1042

1989

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An unusual reaction of a bridged triterpenoid α-diketone with acetic anhydride

Collection of Czechoslovak chemical communications, 1991, Vol.56 (12), p.2917-2935

1991

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ChemInform Abstract: TRITERPENE 25. MITT. ISOMERISIERUNG VON 20ALPHA,21ALPHA‐EPOXY‐28‐BENZOYLOXY‐DERIVATEN VON TARAXASTAN

Chemischer Informationsdienst, 1972-08, Vol.3 (34)

1972

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Conformation of the A ring in 1-oxo and 3-oxotriterpenoids. Vicinal interproton coupling constants

Collection of Czechoslovak chemical communications, 1986, Vol.51 (3), p.593-610

1986

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Conformation of ring A in 3-oxotriterpenoids. Dipole moments and CD spectra

Collection of Czechoslovak chemical communications, 1986, Vol.51 (3), p.611-620

1986

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ChemInform Abstract: Triterpenes. Part 79. Preparation of Isomeric 2‐Methyl‐1‐oxotriterpenoids of the 18α‐Oleanane Series; Conformation of Ring A

ChemInform, 1987-05, Vol.18 (18), p.no-no

1987

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ChemInform Abstract: Triterpenes. Part 103. Preparation of 2,3-Secodiacids of the Lupane Series

ChemInform, 1994-11, Vol.25 (46), p.no-no

1994

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Synthesis of phthalates of betulinic acid and betulin with cytotoxic activity

Classical bile acids in animals, beta-phocaecholic acid in ducks

Use of cyclodextrins in isotachophoresis : VI. Cyclodextrins as leading electrolyte additives for the separation of bile acids

Synthesis of 24-(Piperidin-1-yl, Morpholin-4-yl and 4-Methylpiperazin-1-yl)-5β-cholan-3α-ols and Four Hydroxylated 23-(4,5-Dihydroimidazol-2-yl)-24-nor-5β-cholanes

ChemInform Abstract: TRITERPENE 26. MITT. MITBETEILIGUNG O‐HALTIGER GRUPPEN IN 28‐POSITRON BEI DER ADDITION VON BROM AN DIE DOPPELBINDUNG VON 20(21)‐TARAXASTEN‐DERIVATEN

Oxidation of 3β,28-Diacetoxy-18-lupen-21-one with Peroxy Acids: A Way to Des-E-lupane Derivatives

Preparation of 2,3-Secodiacids of the Lupane Series

ChemInform Abstract: Triterpenes. Part 99. 21,22-Disubstituted 18α,19βH-Ursane Derivatives with Oxabicyclooctane System in Ring E

Structure of Dimeric Compounds Obtained from 3β-Acetoxy-21,22-dioxo-18α,19βH-ursan-28,20β-olide

ChemInform Abstract: Triterpenes. Part 107. Glycosylation of Triterpene Alcohols and Acids of the Lupane and A-Secolupane Series

ChemInform Abstract: Reactions of 21-Acetoxy-16α,17α-epoxypregn-4-ene-3,20- dione with Nitrogen-Containing Nucleophilic Agents

ChemInform Abstract: Synthesis of 24-(Piperidin-1-yl, Morpholin-4-yl and 4-Methylpiperazin- 1-yl)-5β-cholan-3α-ols and Four Hydroxylated 23-(4,5- Dihydroimidazol-2-yl)-24-nor-5β-cholanes

Indirect Iodination of Estrogenes via Triazenes

ChemInform Abstract: TRITERPENES. PART LVII. THE PREPARATION OF 19αH‐LUPEOL ACETATE AND ITS DERIVATIVES

Synthesis of 16-(4-iodophenyl)hexadecanoic acid

ChemInform Abstract: Triterpenes. Part 90. Conversion of Betulin into Careyagenolide (2α,3β‐Dihydroxy‐18α,19βH‐ursan‐28,20β‐olide)

ChemInform Abstract: TRITERPENES PART 44, OXIDATIVE CLEAVAGE OF 22‐HYDROXYMETHYLENE‐21‐KETONES OF THE 20,28BETA‐EPOXY‐18ALPHA,19BETA H‐URSANE SERIES

Conformation of ring A of 19β,28-epoxy-18α-oleanan-3-one in solution and in the solid state. Crystal structure and carbon-deuterium stretching frequencies

Conversion of betulin into careyagenolide (2α,3β-dihydroxy-18α,19βH-ursan-28,20β-olide)

An unusual reaction of a bridged triterpenoid α-diketone with acetic anhydride

ChemInform Abstract: TRITERPENE 25. MITT. ISOMERISIERUNG VON 20ALPHA,21ALPHA‐EPOXY‐28‐BENZOYLOXY‐DERIVATEN VON TARAXASTAN

Conformation of the A ring in 1-oxo and 3-oxotriterpenoids. Vicinal interproton coupling constants

Conformation of ring A in 3-oxotriterpenoids. Dipole moments and CD spectra

ChemInform Abstract: Triterpenes. Part 79. Preparation of Isomeric 2‐Methyl‐1‐oxotriterpenoids of the 18α‐Oleanane Series; Conformation of Ring A

ChemInform Abstract: Triterpenes. Part 103. Preparation of 2,3-Secodiacids of the Lupane Series

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