6559-91-7Relevant articles and documents
Synthesis and Biological Activity of Ferrocenyl and Ruthenocenyl Analogues of Etoposide: Discovery of a Novel Dual Inhibitor of Topoisomerase II Activity and Tubulin Polymerization
Chrab?szcz, Karolina,B?au?, Andrzej,Grucha?a, Martyna,Wachulec, Marcin,Rychlik, B?a?ej,Pla?uk, Damian
, p. 6254 - 6262 (2021/03/09)
Two series of the ferrocenyl and ruthenocenyl analogues of etoposide bearing 1,2,3-triazolyl or aminoalkyl linker were synthesized and evaluated for their cytotoxic properties, influence on the cell cycle, ability to induce tubulin polymerization, and inhibition of topoisomerase II activity. We found that the replacement of the etoposide carbohydrate moiety with a metallocenyl group led to organometallic conjugates exhibiting differentiated antiproliferative activity. Biological studies demonstrated that two ferrocenylalkylamino conjugates were notably more active than etoposide, with submicromolar or low-micromolar IC50 values towards SW620, etoposide-resistant SW620E, and methotrexate-resistant SW620M cancer cell lines. Moreover, the simplest ferrocenylmethylamino conjugate exerted dual inhibitory action against tubulin polymerization and topoisomerase II activity while other studied compounds affected only topoisomerase II activity.
Preparation method for total synthesis of 4'-demethylepipodophyllotoxin
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Paragraph 0023; 0041; 0055; 0056, (2020/06/02)
The invention discloses a preparation method for total synthesis of 4'-demethylepipodophyllotoxin (also named as epipodophyllotoxin). The preparation method comprises the following steps: (1) syringaldehyde (compound 1) used as an initial material and benzyl methoxyacyl used as a protective group are in favor of a chemical reaction of finally removing the protective group to obtain a target compound; (2) a chiral target object is produced by adopting an asymmetric hydrogenation reduction reaction in which a chiral ligand (s-BINAN Ru (II)) participates; and (3) a reaction of hydrogenating and deprotecting groups is also carried out in parallel while chiral catalytic hydrogenation is carried out. The reaction steps and treatment are saved, the route selection is targeted to the target compound, the production cost is low, and the environment is friendly.
Biotin-podophyllotoxin derivative and its pharmaceutical compositions and methods for their preparation and use
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Paragraph 0040-0041, (2016/10/10)
The invention provides a biotin-podophyllotoxin esterified derivative represented as the general formula (I), pharmaceutical composition taking compounds as active ingredients, as well as applications of the biotin-podophyllotoxin esterified derivative in preparing antitumor drugs and inhibitors. Activity screening proves that the biotin-podophyllotoxin esterified derivative represented as the general formula (I) has better antitumor activity. Meanwhile, a preparation method of the compounds is provided and comprises the following steps: podophyllotoxin is taken as a lead compound, structures of hydroxyl at the 4 site and methoxyl at the 4' site are modified, and a series of compounds are synthesized through connection of different chains between biotin and podophyllotoxin. According to the invention, biotin which is necessary for cell growth is used for structure modification on podophyllotoxin, cancer cell targeting selectivity of a modifier is improved, selective distribution toward cancer cells is realized, and better treatment effect can be achieved. Meanwhile, biotin is soluble in water, and the water solubility problem of drugs can be solved by introducing biotin into podophyllotoxin molecules.
Design, synthesis and biological evaluation of novel podophyllotoxin derivatives bearing 4β-disulfide/trisulfide bond as cytotoxic agents
Zhu, Shi-Jun,Ying, Hua-Zhou,Wu, Yan,Qiu, Ni,Liu, Tao,Yang, Bo,Dong, Xiao-Wu,Hu, Yong-Zhou
, p. 103172 - 103183 (2015/12/23)
A novel series of C-4β-disulfide/trisulfide-containing podophyllotoxin derivatives were designed, synthesized, and biologically evaluated for their cytotoxic activities against human cancer cell lines, including KB (Mouth Epidermal Carcinoma Cells) and KB/VCR (Vincristine-resistant Mouth Epidermal Carcinoma Cells). Most of these compounds exhibited promising moderate to good cytotoxic activities. In particular, some of them displayed even superior activities to that of etoposide, especially for KB/VCR cell lines, indicating that introduction of the disulfide/trisulfide moiety would be beneficial for overcoming the multi-drug resistant limitation of etoposide. Moreover, the metabolic evaluation of the most promising compound was further performed to reveal that disulfide bond can be stable in human plasma over 8 hours, indicating good potential of these compounds for in vivo anti-cancer activities.
Synthesis and Biological evaluation of novel 4β-[(5-substituted)-1,2,3,4-tetrazolyl] podophyllotoxins as anticancer compounds
Hyder, Irfan,Yedlapudi, Deepthi,Kalivendi, Shasi V.,Khazir, Jabeena,Ismail, Tabasum,Nalla, Naresh,Miryala, Sreekanth,Sampath Kumar, Halmuthur M.
supporting information, p. 2860 - 2863 (2015/06/08)
A series of novel 4β-[(5-substituted)-1,2,3,4-tetrazolyl] podophyllotoxin derivatives were synthesized by employing azide-nitrile click chemistry approach. All the derivatives were evaluated for their cytotoxicity against a panel of four human cancer cell lines and their IC50 values were found to be in the range of 2.4-29.06 μM. The cytotoxicity exhibited by the majority of test compounds were found to comparable and often more effective than doxorubicin and all compounds exhibited higher cytotoxicity on A-549 cell lines. Cell cycle analysis showed that the novel 4β-[(5-substituted)-1,2,3,4-tetrazolyl] podophyllotoxins resulted in cell cycle arrest at G2/M phase and were also found to be the potent inhibitors of tubulin polymerization in vitro.
Differential Targeting of Human Topoisomerase II Isoforms with Small Molecules
Mariani, Angelica,Bartoli, Alexandra,Atwal, Mandeep,Lee, Ka C.,Austin, Caroline A.,Rodriguez, Rapha?l
supporting information, p. 4851 - 4856 (2015/06/25)
(Chemical Equation Presented). The TOP2 poison etoposide has been implicated in the generation of secondary malignancies during cancer treatment. Structural similarities between TOP2 isoforms challenge the rational design of isoform-specific poisons to further delineate these processes. Herein, we describe the synthesis and biological evaluation of a focused library of etoposide analogues, with the identification of two novel small molecules exhibiting TOP2B-dependent toxicity. Our findings pave the way toward studying isoform-specific cellular processes by means of small molecule intervention.
Synthesis and evaluation of the apoptosis inducing and CT DNA interaction properties of a series of 4β-carbamoyl 4′-O- demethylepipodophyllotoxins
Sang, Chun-Yan,Liu, Jian-Fei,Qin, Wen-Wen,Zhao, Jie,Hui, Lin,Jin, Yong-Xin,Chen, Shi-Wu
, p. 59 - 67 (2013/11/06)
A series of carbamate derivatives of 4′-demethylepipodophyllotoxin have been synthesized, and their cytotoxicities against several human cancer cell lines, including HeLa, A549, HCT-8, and HL-60 cells, evaluated. Some of these compounds exhibited higher levels of cytotoxicity than the anticancer drug etoposide. 4β-4′-Demethylepipodophyllotoxin 1-(4-nitrophenyl) piperazinyl carbamate (19) was found to be the most potent compound of those synthesized in the current study, and induced cell cycle arrest in the G2/M phase in HeLa cells, which was accompanied by apoptosis. Furthermore, this compound activated the expression of Bax, p53 and caspase-3 in HeLa cells, leading to changes in the conformation of calf thymus DNA from the B-form to a more compact C-form.
Synthesis and cytotoxic activity on human cancer cells of carbamate derivatives of 4β-(1,2,3-triazol-1-yl)podophyllotoxin
Liu, Jian-Fei,Sang, Chun-Yan,Xu, Xiao-Hui,Zhang, Lin-Lin,Yang, Xuan,Hui, Lin,Zhang, Jin-Bang,Chen, Shi-Wu
, p. 621 - 628 (2013/07/27)
Carbamate derivatives of 4β-(1,2,3-triazol-1-yl)podophyllotoxin were synthesized by means of click chemistry, and their cytotoxicities against human cancer cell lines HL-60, A-549, HeLa, and HCT-8 were evaluated. Some compounds were more potent than the anticancer drug etoposide. 4′-O-Demethyl- 4β-[(4-hydroxymethyl)-1,2,3-triazol-1-yl]-4-deoxypodophyllotoxin cyclopentyl carbamate, the most potent compound, induced cell cycle arrest in the G2/M phase accompanied by apoptosis in A-549 cells. Furthermore, this compound inhibited the formation of microtubules in A-549 cells and caused the inhibition of DNA topoisomerase-II.
Practical demethylation of podophyllotoxin and efficient preparation of 4-amino-4-deoxy-4′-demethylepipodophyllotoxin
Guminski, Yves,Grousseaud, Martial,Cugnasse, Sandrine,Imbert, Thierry
experimental part, p. 2780 - 2789 (2012/07/30)
(Chemical Equation Presented) 4′-Demethylepipodophyllotoxin (4′-DMEP) was readily available through demethylation of podophyllotoxin using methionine in methanesulfonic acid in the presence of TFA (or acetone/water). Thus, 4-amino-4-deoxy-4′-demethylepipodophyllotoxin was obtained in three steps in excellent yield by a Ritter reaction on 4′-DMEP, followed by treatment with thiourea in AcOH. Copyright Institut de Recherche Pierre Fabre.
