desoxypodophyllotoxin/rak

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Potential usage of liposomal 4beta-aminoalkyl-4'-O-demethyl-4-desoxypodophyllotoxin (TOP-53) for cancer chemotherapy.

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To enhance the therapeutic efficacy as well as to reduce the side effect, we attempted to liposomalize 4beta-aminoalkyl-4'-O-demethyl-4-desoxypodophyllotoxin (TOP-53), a novel and effective topoisomerase II inhibitor. More than 90% of TOP-53 was efficiently incorporated into the liposomes composed

Characterization of human lung cancer cells resistant to 4'-O-demethyl-4beta-(2"-nitro-4"-fluoroanilino)-4-desoxypodophyllotoxin , a unique compound in the epipodophyllotoxin antitumor class.

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A new semi-synthetic podophyllotoxin derivative, 4'-O-demethyl-4beta-2"-nitro-4"-fluoroanilino)-4-desoxypo dophyllotoxin (compound 1), an analog of GL-331 (compound 2), is a potent and broad-spectrum inhibitor of cultured human cancer and drug-resistant cell growth. In general,

GL3, a Novel 4β-Anilino-4'-O-Demethyl-4-Desoxypodophyllotoxin Analog, Traps Topoisomerase II Cleavage Complexes and Exerts Anticancer Activities.

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A novel VP-16 derivative, 4β-[N -(4‴-acetyloxyl-phenyl-1‴-carbonyl)-4″-aminoanilino]-4'-O-demethyl-4-desoxypodophyllotoxin (GL3), displayed a wide range of cytotoxicity in a panel of human tumor cell lines, with half-maximal inhibitory concentration (IC(50)) values ranging from 0.82 to 4.88 µM, much

Synthesis and biological evaluation of new 4β-anilino-4'-O-demethyl-4-desoxypodophyllotoxin derivatives as potential antitumor agents.

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A series of new 4β-anilino-4'-O-demethyl-4-desoxypodophyllotoxin derivatives were prepared and evaluated for their cytotoxicities against four human cancer cell lines including KB, KB/VCR, A549 and 95D. Most compounds showed better growth-inhibition activities against tested cell lines than that of

Antitumor activity of a novel podophyllotoxin derivative (TOP-53) against lung cancer and lung metastatic cancer.

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We synthesized a potent new antitumor podophyllotoxin derivative (4beta-aminoalkyl-4'-O-demethyl-4-desoxypodophyllotoxin; TOP-53) in our search for a drug that has strong activity against lung cancer and lung metastatic cancer. TOP-53 exhibited twice the inhibitory activity of etoposide (VP-16)

Antiproliferative Compounds from Cleistanthus boivinianus from the Madagascar Dry Forest.

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The two new lignans 3α-O-(β-D-glucopyranosyl)desoxypodophyllotoxin (1) and 4-O-(β-D-glucopyranosyl)dehydropodophyllotoxin (2) were isolated from Cleistanthus boivinianus, together with the known lignans deoxypicropodophyllotoxin (3), (±)-β-apopicropodophyllin (4), (-)-desoxypodophyllotoxin (5),

A new lignan glycoside from Juniperus rigida.

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A new lignan glycoside, named juniperigiside (1) was isolated from the CHCl(3) soluble fraction of the MeOH extract of stems and leaves of Juniperus rigida S.et Z. Compound 1 was identified by 1D- and 2D-NMR spectroscopy as well as CD analysis as

Antitumor agents. 194. Synthesis and biological evaluations of 4-beta-mono-, -di-, and -trisubstituted aniline-4'-O-demethyl-podophyllotoxin and related compounds with improved pharmacological profiles.

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As a continuation of our structure-activity relationship studies, several new 4-beta-substituted 4'-O-demethyl-4-desoxypodophyllotoxins bearing mono-, di-, or trisubstituted anilines have been synthesized and evaluated as inhibitors of DNA topoisomerase II and tumor cell growth in tissue culture.

Cytotoxic podophyllotoxin type-lignans from the steam bark of Bursera fagaroides var. fagaroides.

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The hydroalcoholic extract of the steam bark of B. fagaroides var. fagaroides displayed potent cytotoxic activity against four cancer cell lines, namely KB (ED50 = 9.6 × 10(-2) μg/mL), PC-3 (ED50 = 2.5 × 10(-1) μg/mL), MCF-7 (ED50 = 6.6 μg/mL), and HF-6 (ED50 = 7.1 × 10(-3) μg/mL). This extract also

Indolizine-phenothiazine hybrids as the first dual inhibitors of tubulin polymerization and farnesyltransferase with synergistic antitumor activity

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In the incessant search for innovative cancer control strategies, this study was devoted to the design, synthesis and pharmacological evaluation of dual inhibitors of farnesyltransferase and tubulin polymerization (FTI/MTIs). A series of indolizine-phenothiazine hybrids 16 (amides) and 17 (ketones)

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