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Bruno Danieli et al.
Chemistry & biodiversity, 1(2), 327-345 (2006-12-29)
The bifunctional taxoid-colchicinoid hybrids 6-8 were synthesized and evaluated in assays of cytotoxicity and tubulin assembly/disassembly. All compounds showed a high degree of cytotoxicity, but, while 6 and 7 behaved as bifunctional tubulin binders not unlike an equimolecular mixture of
Bin Wang et al.
Yao xue xue bao = Acta pharmaceutica Sinica, 41(11), 1057-1063 (2007-02-01)
To search for colchicine derivatives which have high efficacy and low toxicity. Colchicine was firstly converted into thiocolchicine, and then it was hydrolyzed to get 7-(N-deacetylthiocolchicine). At last, 7-(N-deacetylthiocolchicine) was amidated to get the target compounds. The chemical structure of
E Perucca et al.
European journal of drug metabolism and pharmacokinetics, 20(4), 301-305 (1995-10-01)
The comparative pharmacokinetic and bioavailability profile of two different formulations (tablets and capsules) of thiocolchicoside was investigated in 8 healthy male volunteers after administration of single oral 8 mg doses. Plasma samples were assayed by a capillary gas chromatography--mass spectrometry
Sun-Hee Lee et al.
Archiv der Pharmazie, 338(12), 582-589 (2005-12-15)
New thiocolchicine derivatives (1-8) were designed as less toxic anticancer agents possessing the power full anticancer activity of colchicine. The synthesis and biological evaluation of these compounds were described. As a preliminary result of biological in vitro investigation, compounds 1
B Wolach et al.
European journal of clinical investigation, 22(9), 630-634 (1992-09-01)
Colchicine has been used in diverse clinical settings such as gout, familial Mediterranean fever, liver cirrhosis, Behcet's disease and pericarditis. It also has an antimitotic potential hitherto unexplored due to its narrow therapeutic toxic ratio. The aim of the present
Q Shi et al.
Bioorganic & medicinal chemistry, 5(12), 2277-2282 (1998-02-12)
(+)-Thiocolchicine (2b) was prepared from (+/-)-colchicine (1) in a five-step reaction sequence that included chromatographic separation of appropriate camphanylated diastereomers. Acid hydrolysis of the (+)-diastereomer, followed by acetylation, yielded the desired product 2b. (+)-Thiocolchicine has 15-fold lower inhibitory activity against
Giuseppina Raspaglio et al.
Biochemical pharmacology, 69(1), 113-121 (2004-12-14)
During a cellular screening of thiocolchicine analogs, thiocolchicine dimers resulted particularly active in cisplatin-resistant A2780-CIS cells. In order to discover by which mechanism(s) thiocolchicine dimers overcame cisplatin resistance, p53, p21waf1 and MLH1 were assessed by Western blot. Results pointed out
Q Shi et al.
Journal of medicinal chemistry, 40(6), 961-966 (1997-03-14)
A series of novel 7-O-substituted deacetamidothiocolchicine derivatives has been synthesized and evaluated for their inhibitory activity against tubulin polymerization, the binding of [3H]-colchicine to tubulin, and the growth of human Burkitt lymphoma cells. Of these new derivatives, thiocolchicone (8), wherein
[TENS + mesotherapy association in the therapy of cervico-brachialgia: preliminary data].
S Palermo et al.
Minerva anestesiologica, 57(10), 1084-1085 (1991-10-01)
A Banerjee et al.
Biochemical and biophysical research communications, 254(2), 334-337 (1999-01-27)
The antimitotic alkaloid colchicine binds to tubulin and inhibits microtubule assembly. Recently a new series of colchicine derivatives has been synthesized in which the seven-membered B-ring was shortened to a six-membered ring. In an effort to study the role of
Daniele Passarella et al.
European journal of medicinal chemistry, 45(1), 219-226 (2009-11-03)
The synthesis and biological evaluation of 9 dimeric compounds obtained by condensation of thiocolchicine and/or podophyllotoxin with 6 different dicarboxylic acids is described. In particular, tubulin assembly assay and immunofluorescence analysis results are reported. The biological data highlighted three compounds
L Sun et al.
Journal of medicinal chemistry, 36(5), 544-551 (1993-03-05)
A series of novel thiocolchicine analogs, 5,6-dihydro-6(S)-(acyloxy)-and 5,6-dihydro-6(S)-[(aroyloxy)-methyl]-1,2,3-trimethoxy-9-(methylthi o)-8H- cyclohepta[a]naphthalen-8-ones, possessing a six-membered ring B, have been synthesized and evaluated for their cytotoxicity against various tumor cell lines, including solid tumor cell lines, and for their interaction with tubulin. The
Dorota Bartusik et al.
Bioorganic chemistry, 38(1), 1-6 (2009-12-01)
It was shown, that cultured ex vivo human T-Lymphoblastoid (CEM) cells respond to synthesized thiocolchicine and fluorine thiocolchicine derivatives. The preparation of derivatives with substitution at C-3 and C-7 is described. All compounds were used at concentration from 1 nM
Daniele Passarella et al.
Bioorganic & medicinal chemistry, 16(11), 6269-6285 (2008-05-13)
A series of novel hybrid compounds obtained by the attachment of anhydrovinblastine, vinorelbine, and vindoline to thiocolchicine, podophyllotoxin, and baccatin III are described. Two types of diacyl spacers are introduced. The influence of the hybrid compounds on tubulin polymerization is
R De Vincenzo et al.
Oncology research, 11(3), 145-152 (1999-10-20)
Three new 7-0-substituted deacetamidothiocolchicine derivatives have been evaluated for their antitumor activity against various human tumor cell lines, some of which express the multidrug resistance (MDR) phenotype, for their impact on the cell cycle and their binding to tubulin. Colchicine
Bruno Danieli et al.
The Journal of organic chemistry, 71(7), 2848-2853 (2006-03-25)
A dynamic combinatorial library of thiocolchicine-podophyllotoxin derivatives based on the disulfide bond exchange reaction is described. The influence of a biological target on the composition of the reaction mixture has been demonstrated. Use of high-resolution ESI mass spectrometry to evaluate
R M Chabin et al.
Biochemical and biophysical research communications, 161(2), 544-550 (1989-06-15)
Thiocolchicine, a colchicine analog in which the C-10 methoxy is replaced with a thiomethyl moiety, was shown to bind with high affinity to the colchicine site on tubulin (Ka = 1.07 +/- 0.14 x 10(6) M-1 at 23 degrees C).
R De Vincenzo et al.
Anti-cancer drug design, 13(1), 19-33 (1998-02-25)
In this study the in vitro antitumor activity of a series of 20 colchicine analogues was tested and compared with colchicine and thiocolchicine on three different human cancer cell lines, two of which express the multidrug-resistance (MDR) phenotype. At concentrations
A Muzaffar et al.
Journal of medicinal chemistry, 33(2), 567-571 (1990-02-01)
Esterification of the phenolic group in 3-demethylthiocolchicine and exchange of the N-acetyl group with other N-acyl groups or a N-carbalkoxy group afforded many compounds which showed superior activity over the parent drug as inhibitors of tubulin polymerization and of the
Recent progress in structure-activity relationship studies on the anticancer drug colchicine and its analogues.
Xian-dao Pan et al.
Yao xue xue bao = Acta pharmaceutica Sinica, 37(10), 821-827 (2003-02-06)
P Lincoln et al.
Biochemistry, 30(5), 1179-1187 (1991-02-05)
The interaction of tubulin with thiocolchicine and two thiocolchicine analogues, one lacking the B ring and one with a six-membered B ring, has been studied by using near-UV and CD spectroscopies. Rapid, reversible binding of the latter analogue to tubulin
R Brecht et al.
Bioorganic & medicinal chemistry, 8(3), 557-562 (2000-03-25)
Several B-ring variations of O-methyl androbiphenyline (8), newly accessible from (-)-(M,7S)-colchicine via photooxygenation and subsequent endoperoxide-transformation, were synthesized and evaluated for their inhibitory effects on tubulin assembly in vitro. The amino-allocolchicinoid (9), a key compound in this study, was transformed
L Sun et al.
Journal of medicinal chemistry, 36(10), 1474-1479 (1993-05-14)
Three series of novel thiocolchicine analogs, N-acyl-, N-aroyl-, and N-(substituted benzyl)-deacetylthiocolchicinoids, have been synthesized and evaluated for their cytotoxicity against various tumor cell lines, especially solid tumor cell lines, and for their inhibitory effects on tubulin polymerization in vitro. Most
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