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Daniel P, Balušíková K, Truksa J, Černý J, Jaček M, Jelínek M, Mulenga MJV, Voráčová K, Chen L, Wei L, Sun Y, Ojima I, Kovář J. Effect of substituents at the C3´, C3´N, C10 and C2-meta-benzoate positions of taxane derivatives on their activity against resistant cancer cells. Toxicol Appl Pharmacol 2024; 489:116993. [PMID: 38870637 PMCID: PMC11257372 DOI: 10.1016/j.taap.2024.116993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/25/2024] [Accepted: 06/05/2024] [Indexed: 06/15/2024]
Abstract
We tested the effect of substituents at the (1) C3´, C3´N, (2) C10, and (3) C2-meta-benzoate positions of taxane derivatives on their activity against sensitive versus counterpart paclitaxel-resistant breast (MCF-7) and ovarian (SK-OV-3) cancer cells. We found that (1) non-aromatic groups at both C3´ and C3´N positions, when compared with phenyl groups at the same positions of a taxane derivative, significantly reduced the resistance of ABCB1 expressing MCF-7/PacR and SK-OV-3/PacR cancer cells. This is, at least in the case of the SB-T-1216 series, accompanied by an ineffective decrease of intracellular levels in MCF-7/PacR cells. The low binding affinity of SB-T-1216 in the ABCB1 binding cavity can elucidate these effects. (2) Cyclopropanecarbonyl group at the C10 position, when compared with the H atom, seems to increase the potency and capability of the derivative in overcoming paclitaxel resistance in both models. (3) Derivatives with fluorine and methyl substituents at the C2-meta-benzoate position were variously potent against sensitive and resistant cancer cells. All C2 derivatives were less capable of overcoming acquired resistance to paclitaxel in vitro than non-substituted analogs. Notably, fluorine derivatives SB-T-121205 and 121,206 were more potent against sensitive and resistant SK-OV-3 cells, and derivatives SB-T-121405 and 121,406 were more potent against sensitive and resistant MCF-7 cells. (4) The various structure-activity relationships of SB-T derivatives observed in two cell line models known to express ABCB1 favor their complex interaction not based solely on ABCB1.
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Affiliation(s)
- Petr Daniel
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Kamila Balušíková
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jaroslav Truksa
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic; Laboratory of Tumor Resistance, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Centre, Vestec, Czech Republic
| | - Jiří Černý
- Laboratory of Structural Bioinformatics of Proteins, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Centre, Vestec, Czech Republic
| | - Martin Jaček
- Department of Hygiene, Epidemiology and Preventive Medicine, Third Faculty of Medicine, Charles Univesity, Prague, Czech Republic
| | - Michael Jelínek
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Mutale Jane Vobruba Mulenga
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Kateřina Voráčová
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Lei Chen
- Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Longfei Wei
- Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Yi Sun
- Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Iwao Ojima
- Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Jan Kovář
- Division of Cell and Molecular Biology, Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
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2
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Ying J, Liu T, Liu Y, Wan JP. Base-Promoted Annulative Difluoromethylenation of Enaminones with BrCF 2CO 2Et toward 2,2-Difluorinated 2,3-Dihydrofurans. Org Lett 2022; 24:2404-2408. [PMID: 35302379 DOI: 10.1021/acs.orglett.2c00671] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A practical method for the synthesis of 2,2-difluorinated 2,3-dihydrofurans has been established via the [4 + 1] annulation of enaminones and BrCF2CO2Et with Na2CO3 promotion. This new protocol does not employ any transition metal reagent and enables the annulative difluoromethylation by the partial cleavage of the C═C double bond. In addition, the further treatment with hydrochloric acid in one pot leads to β-keto enoic acids (4-oxo-2-butenoic acids) via a formal enaminone C-N carboxylation.
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Affiliation(s)
- Jinbiao Ying
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Ting Liu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yunyun Liu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jie-Ping Wan
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
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Sheng H, Chen Z, Li X, Su J, Song Q. Construction and transformations of 2,2-difluoro-2,3-dihydrofurans from enaminones and diflurocarbene. Org Chem Front 2022. [DOI: 10.1039/d2qo00468b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient construction of 2-difluoro-2,3-dihydrofurans was reported, which features metal-free, additive-free, broad functional group tolerance and readily accessible starting materials. It is worth mentioning that this type of...
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4
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Langer P. Synthesis of Purines and Related Molecules by Cyclization Reactions of Heterocyclic Enamines. Synlett 2021. [DOI: 10.1055/s-0040-1719845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractA great variety of pharmacologically relevant fluorinated purine analogues are available by cyclization reactions of heterocyclic enamines with 1,3-dielectrophiles. The reactions usually proceed with excellent regioselectivities. As electrophiles, 1,3-diketones, enaminones or 3-chloro-2-en-1-ones were used. Other synthetic strategies are based on inverse-electron-demand Diels–Alder reactions of heterocyclic enamines with triazines. Purine analogues were further functionalized by transition-metal-catalyzed CH-coupling reactions or oxidative cyclizations, giving rise to more complex polycyclic products. Amidino-C-glycosides in their reactions with 1,3-dielectrophiles afforded pyrimidine-C-glycosides. Multicomponent reactions of heterocyclic enamines afforded complex products, including spirocyclic derivatives.1 Introduction2 1,3-Diketones3 Enaminones4 3-Chloro-2-en-1-ones5 Triazines6 Transition-Metal-Catalyzed Functionalizations7 Pyrimidine-C-Nucleosides8 Multicomponent Reactions9 Conclusions
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Affiliation(s)
- Peter Langer
- Institut für Chemie, Universität Rostock
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock
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5
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Ren S, Zhang M, Wang Y, Guo J, Wang J, Li Y, Ding N. Synthesis and biological evaluation of novel cabazitaxel analogues. Bioorg Med Chem 2021; 41:116224. [PMID: 34058663 DOI: 10.1016/j.bmc.2021.116224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/13/2021] [Accepted: 05/18/2021] [Indexed: 10/21/2022]
Abstract
Cabazitaxel is one of the most recently FDA-approved taxane anticancer agent. In view of the advantages in preclinical and clinical data of cabazitaxel over former toxoids, the synthesis and biological evaluation of novel cabazitaxel analogues were conducted. First, a novel semi-synthesis of cabazitaxel was described. This strategy is concise and efficient, which needs five steps from the 10-deacetylbaccatin III (10-DAB) moiety and a commercially available C13 side chain precursor with a 32% overall yield. Besides, this strategy avoids using many hazardous reagents that involved in the previously reported processes. Then, a panel of cabazitaxel analogues were prepared basing on this strategy. The cytotoxicity evaluations showed that the majority of these cabazitaxel analogues are potent against both A549 and KB cells and their corresponding drug-resistant cell lines KB/VCR, and A549/T, respectively. Further in vivo antitumor efficacies assessment of 7,10-di-O-methylthiomethyl (MTM) modified cabazitaxel (compounds 16 and 19) on SCID mice A549 xenograft model showed they both had similar antitumor activity to the cabazitaxel. Since compound 19 was observed causing more body wight loss on the mice than 16, these preliminary studies suggest 16 might be a potent drug candidate for further preclinical evaluation.
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Affiliation(s)
- Sumei Ren
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China; School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Minmin Zhang
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yujie Wang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jia Guo
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Junfei Wang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yingxia Li
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Ning Ding
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China.
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Capaccio V, Sicignano M, Rodríguez RI, Della Sala G, Alemán J. Asymmetric Synthesis of α-Trifluoromethylthio-β-Amino Acids under Phase Transfer Catalysis. Org Lett 2019; 22:219-223. [DOI: 10.1021/acs.orglett.9b04195] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Vito Capaccio
- Organic Chemistry Department, Módulo 1, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Marina Sicignano
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Ricardo I. Rodríguez
- Organic Chemistry Department, Módulo 1, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Giorgio Della Sala
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - José Alemán
- Organic Chemistry Department, Módulo 1, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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7
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Remete AM, Nonn M, Fustero S, Fülöp F, Kiss L. Synthesis of fluorinated amino acid derivatives through late-stage deoxyfluorinations. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Wu M, Zhao X, Liu Y, Cao S. Synthesis of difluoromethylated enynes by the reaction of α-(trifluoromethyl)styrenes with terminal alkynes. Org Biomol Chem 2018; 16:6909-6917. [PMID: 30225511 DOI: 10.1039/c8ob02117a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel and efficient method for the synthesis of difluoromethylated enynes by the reaction of α-(trifluoromethyl)styrenes with terminal alkynes with the assistance of NaOtBu was described. The mechanism of the reaction might involve the SN2' reaction of α-(trifluoromethyl)styrenes and a subsequent 1,3-H shift. Isomerization (E → Z) of 1-difluoromethyl-1,3-enynes in the presence of ZrCl4 was also developed.
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Affiliation(s)
- Mingsheng Wu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
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9
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Ren S, Wang Y, Wang J, Gao D, Zhang M, Ding N, Li Y. Synthesis and biological evaluation of novel larotaxel analogues. Eur J Med Chem 2018; 156:692-710. [PMID: 30036834 DOI: 10.1016/j.ejmech.2018.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 07/07/2018] [Accepted: 07/10/2018] [Indexed: 10/28/2022]
Abstract
Taxoids are a class of successful drugs and have been successfully used in chemotherapy for a variety of cancer types. However, despite the hope and promises that these taxoids have engendered, their utility is hampered by some clinic limitations. Extensive structure-activity relationship (SAR) studies of toxoids have been performed in many different laboratories. Whereas, SAR studies that based on the new-generation toxoid, larotaxel, have not been reported yet. In view of the advantages in preclinical and clinical data of larotaxel over former toxoids, new taxoids that strategicly modified at the C3'/C3'-N and C2 positions of larotaxel were designed, semi-synthesized, and examined for their potency and efficacy in vitro. As a result, it has been shown that the majority of these larotaxel analogues are exceptionally potent against both drug-sensitive tumor cells and tumor cells with drug resistance arising from P-glycoprotein over expression. Further in vivo antitumor efficacies investigations revealed A2 might be a potent antitumor drug candidate for further preclinical evaluation.
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Affiliation(s)
- Sumei Ren
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Yujie Wang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Junfei Wang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Dingding Gao
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Minmin Zhang
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Ning Ding
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, China; Zhangjiang Technology Institute, Fudan University, 825 Zhangheng Road, Shanghai, 201203, China.
| | - Yingxia Li
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, 201203, China; Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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10
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Regio- and diastereoselective Reformatsky reaction of chiral fluoroalkyl α,β-unsaturated N - tert -butanesulfinyl ketimines: Efficient asymmetric synthesis of β-fluoroalkyl β-vinyl β-amino esters. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Jelínek M, Balušíková K, Daniel P, Němcová-Fürstová V, Kirubakaran P, Jaček M, Wei L, Wang X, Vondrášek J, Ojima I, Kovář J. Substituents at the C3' and C3'N positions are critical for taxanes to overcome acquired resistance of cancer cells to paclitaxel. Toxicol Appl Pharmacol 2018; 347:79-91. [PMID: 29625142 DOI: 10.1016/j.taap.2018.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/26/2018] [Accepted: 04/02/2018] [Indexed: 12/14/2022]
Abstract
We tested the role of substituents at the C3' and C3'N positions of the taxane molecule to identify taxane derivatives capable of overcoming acquired resistance to paclitaxel. Paclitaxel-resistant sublines SK-BR-3/PacR and MCF-7/PacR as well as the original paclitaxel-sensitive breast cancer cell lines SK-BR-3 and MCF-7 were used for testing. Increased expression of the ABCB1 transporter was found to be involved in the acquired resistance. We tested three groups of taxane derivatives: (1) phenyl group at both C3' and C3'N positions, (2) one phenyl at one of the C3' and C3'N positions and a non-aromatic group at the second position, (3) a non-aromatic group at both C3' and C3'N positions. We found that the presence of phenyl groups at both C3' and C3'N positions is associated with low capability of overcoming acquired paclitaxel resistance compared to taxanes containing at least one non-aromatic substituent at the C3' and C3'N positions. The increase in the ATPase activity of ABCB1 transporter after the application of taxanes from the first group was found to be somewhat higher than after the application of taxanes from the third group. Molecular docking studies demonstrated that the docking score was the lowest, i.e. the highest binding affinity, for taxanes from the first group. It was intermediate for taxanes from the second group, and the highest for taxanes from the third group. We conclude that at least one non-aromatic group at the C3' and C3'N positions of the taxane structure, resulting in reduced affinity to the ABCB1 transporter, brings about high capability of taxane to overcome acquired resistance of breast cancer cells to paclitaxel, due to less efficient transport of the taxane compound out of the cancer cells.
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Affiliation(s)
- Michael Jelínek
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 110 00 Prague, Czech Republic.
| | - Kamila Balušíková
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 110 00 Prague, Czech Republic.
| | - Petr Daniel
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 110 00 Prague, Czech Republic.
| | - Vlasta Němcová-Fürstová
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 110 00 Prague, Czech Republic.
| | - Palani Kirubakaran
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Flemingovo náměstí 542/2, 166 10 Prague, Czech Republic.
| | - Martin Jaček
- Department of Hygiene, Epidemiology and Preventive Medicine, Third Faculty of Medicine, Charles University, Ruská 87, 110 00 Prague, Czech Republic.
| | - Longfei Wei
- Department of Chemistry, Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA.
| | - Xin Wang
- Department of Chemistry, Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA.
| | - Jiří Vondrášek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Flemingovo náměstí 542/2, 166 10 Prague, Czech Republic.
| | - Iwao Ojima
- Department of Chemistry, Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA.
| | - Jan Kovář
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 110 00 Prague, Czech Republic.
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Ojima I, Wang X, Jing Y, Wang C. Quest for Efficacious Next-Generation Taxoid Anticancer Agents and Their Tumor-Targeted Delivery. JOURNAL OF NATURAL PRODUCTS 2018; 81:703-721. [PMID: 29468872 PMCID: PMC5869464 DOI: 10.1021/acs.jnatprod.7b01012] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Indexed: 05/28/2023]
Abstract
Paclitaxel and docetaxel are among the most widely used chemotherapeutic drugs against various types of cancer. However, these drugs cause undesirable side effects as well as drug resistance. Therefore, it is essential to develop next-generation taxoid anticancer agents with better pharmacological properties and improved activity especially against drug-resistant and metastatic cancers. The SAR studies by the authors have led to the development of numerous highly potent novel second- and third-generation taxoids with systematic modifications at the C-2, C-10, and C-3' positions. The third-generation taxoids showed virtually no difference in potency against drug-resistant and drug-sensitive cell lines. Some of the next-generation taxoids also exhibited excellent potency against cancer stem cells. This account summarizes concisely investigations into taxoids over 25 years based on a strong quest for the discovery and development of efficacious next-generation taxoids. Discussed herein are SAR studies on different types of taxoids, a common pharmacophore proposal for microtubule-stabilizing anticancer agents and its interesting history, the identification of the paclitaxel binding site and its bioactive conformation, characteristics of the next-generation taxoids in cancer cell biology, including new aspects of their mechanism of action, and the highly efficacious tumor-targeted drug delivery of potent next-generation taxoids.
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Affiliation(s)
- Iwao Ojima
- Department of Chemistry and Institute
of Chemical Biology & Drug Discovery, Stony Brook University−State University of New York, Stony Brook, New York 11794-3400, United States
| | - Xin Wang
- Department of Chemistry and Institute
of Chemical Biology & Drug Discovery, Stony Brook University−State University of New York, Stony Brook, New York 11794-3400, United States
| | - Yunrong Jing
- Department of Chemistry and Institute
of Chemical Biology & Drug Discovery, Stony Brook University−State University of New York, Stony Brook, New York 11794-3400, United States
| | - Changwei Wang
- Department of Chemistry and Institute
of Chemical Biology & Drug Discovery, Stony Brook University−State University of New York, Stony Brook, New York 11794-3400, United States
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Ojima I. Strategic Incorporation of Fluorine into Taxoid Anticancer Agents for Medicinal Chemistry and Chemical Biology Studies. J Fluor Chem 2017; 198:10-23. [PMID: 28824201 DOI: 10.1016/j.jfluchem.2016.12.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This account exemplifies our recent progress on the strategic incorporation of fluorine and organofluorine groups to taxoid anticancer agents and their tumor-targeted drug delivery systems (TTDDSs) for medicinal chemistry and chemical biology studies. Novel 3'-difluorovinyltaxoids were strategically designed to block the metabolism by cytochrome P-450, synthesized, and evaluated for their cytotoxicity against drug-sensitive and multidrug-resistant (MDR) human cancer cell lines. 3'-Difluorovinyltaxoids exhibited impressive activities against these cancer cell lines. More significantly, a representative 3'-difluorovinyltaxoid exhibited 230-33,000 times higher potency than conventional anticancer drugs against cancer stem cell-enriched HCT-116 cell line. Studies on the mechanism of action (MOA) of these fluorotaxoids were performed by tubulin polymerization assay, morphology analysis by electron microscopy (EM) and protein binding assays. Novel 19F NMR probes, BLT-F2 and BLT-S-F6, were designed by strategically incorporating fluorine, CF3 and CF3O groups into tumor-targeting drug conjugates. These 19F-probes were designed and synthesized to investigate the mechanism of linker cleavage and factors that influence their plasma and metabolic stability by real-time 19F NMR analysis. Time-resolved 19F NMR study on probe BLT-F2 revealed a stepwise mechanism for the release of a fluorotaxoid, which might not be detected by other analytical methods. Probe BLT-S-F6 were very useful to study the stability and reactivity of the drug delivery system in human blood plasma by 19F NMR. The clean analysis of the linker stability and reactivity of drug conjugates in blood plasma by HPLC and 1H NMR is very challenging, but the use of 19F NMR and suitable 19F probes can provide a practical solution to this problem.
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Affiliation(s)
- Iwao Ojima
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY, 11794-3400, U. S. A.,Institute of Chemical Biology & Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY, 11794-3400, U. S. A
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Rawner T, Knorn M, Lutsker E, Hossain A, Reiser O. Synthesis of Trifluoromethylated Sultones from Alkenols Using a Copper Photoredox Catalyst. J Org Chem 2016; 81:7139-47. [DOI: 10.1021/acs.joc.6b01001] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas Rawner
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Matthias Knorn
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Eugen Lutsker
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Asik Hossain
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Oliver Reiser
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
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15
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Vineberg JG, Wang T, Zuniga ES, Ojima I. Design, synthesis, and biological evaluation of theranostic vitamin-linker-taxoid conjugates. J Med Chem 2015; 58:2406-16. [PMID: 25654690 DOI: 10.1021/jm5019115] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Novel tumor-targeting theranostic conjugates 1 and 2, bearing either a fluorine-labeled prosthetic as a potential (18)F-PET radiotracer (1) or a fluorescence probe (2) for internalization studies in vitro, were designed and synthesized. We confirmed efficient internalization of 2 in biotin-receptor positive (BR+) cancer cells via receptor-mediated endocytosis (RME) based on flow cytometry and confocal fluorescence microscopy (CFM) analyses, which exhibited very high specificity to BR+ cancer cells. The potency and cancer-cell selectivity of 1 were evaluated against MX-1, L1210FR and ID8 cancer cells (BR+) as well as L1210 cells and WI38 normal human lung fibroblast cells (biotin-receptor negative: BR-). In particular, we designed and performed an assay in the presence of glutathione ethyl ester (GSH-OEt) wherein only 1 molecules internalized into cells via RME in the first 24 h period exert cytotoxic effect. The observed selectivity of 1 was remarkable, with 2 orders of magnitude difference in IC50 values between BR+ cancer cells and WI38 cells, demonstrating a salient feature of this tumor-targeted drug delivery system.
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Affiliation(s)
- Jacob G Vineberg
- Department of Chemistry and ‡Institute of Chemical Biology & Drug Discovery, Stony Brook University , Stony Brook, New York 11794-3400, United States
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Vaidyanathaswamy R, Raman GA, Ramkumar V, Anand R. Nucleophilic difluoroalkylation of benzophenones, benzaldehydes and Schiff's bases by tetrafluoroethyl ether and difluoroacetamide. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2014.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ojima I, Kumar K, Awasthi D, Vineberg JG. Drug discovery targeting cell division proteins, microtubules and FtsZ. Bioorg Med Chem 2014; 22:5060-77. [PMID: 24680057 PMCID: PMC4156572 DOI: 10.1016/j.bmc.2014.02.036] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/25/2014] [Accepted: 02/18/2014] [Indexed: 12/16/2022]
Abstract
Eukaryotic cell division or cytokinesis has been a major target for anticancer drug discovery. After the huge success of paclitaxel and docetaxel, microtubule-stabilizing agents (MSAs) appear to have gained a premier status in the discovery of next-generation anticancer agents. However, the drug resistance caused by MDR, point mutations, and overexpression of tubulin subtypes, etc., is a serious issue associated with these agents. Accordingly, the discovery and development of new-generation MSAs that can obviate various drug resistances has a significant meaning. In sharp contrast, prokaryotic cell division has been largely unexploited for the discovery and development of antibacterial drugs. However, recent studies on the mechanism of bacterial cytokinesis revealed that the most abundant and highly conserved cell division protein, FtsZ, would be an excellent new target for the drug discovery of next-generation antibacterial agents that can circumvent drug-resistances to the commonly used drugs for tuberculosis, MRSA and other infections. This review describes an account of our research on these two fronts in drug discovery, targeting eukaryotic as well as prokaryotic cell division.
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Affiliation(s)
- Iwao Ojima
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA; Institute of Chemical Biology & Drug Discovery, Stony Brook University, Stony Brook, NY 11794-3400, USA.
| | - Kunal Kumar
- Institute of Chemical Biology & Drug Discovery, Stony Brook University, Stony Brook, NY 11794-3400, USA
| | - Divya Awasthi
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA
| | - Jacob G Vineberg
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA
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Ojima I, Kamath A, Seitz JD. Taxol, Taxoids, and Related Taxanes. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2014. [DOI: 10.1002/9783527676545.ch04] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Shen X, Yang J, Zhan H, Wang H, Wu S, Chen Z. An Efficient Semi-Synthetic Method to Construct Docetaxel via Sterically Crowded Linear Side Chain Esterification. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201201142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Shevchuk MV, Kukhar VP, Röschenthaler GV, Bassil BS, Kawada K, Soloshonok VA, Sorochinsky AE. New asymmetric approach to β-trifluoromethyl isoserines. RSC Adv 2013. [DOI: 10.1039/c3ra40687c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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21
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Affiliation(s)
- Anushree Kamath
- Institute of Chemical Biology & Drug Discovery (ICB&DD) and Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, U. S. A
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Kuznetsova L, Sun L, Chen J, Zhao X, Seitz J, Das M, Li Y, Veith JM, Pera P, Bernacki RJ, Xia S, Horwitz SB, Ojima I. Synthesis and Biological Evaluation of Novel 3'-Difluorovinyl Taxoids. J Fluor Chem 2012; 143:177-188. [PMID: 23139432 PMCID: PMC3489494 DOI: 10.1016/j.jfluchem.2012.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A series of 3'-difluorovinyl taxoids with C10 modifications, as well as those with C2 and C10 modifications, were strategically designed to block the metabolism by cytochrome P-450 3A4 enzyme and synthesized. These novel difluorovinyl taxoids were evaluated for their cytotoxicity against drug-sensitive human breast (MCF7), multidrug-resistant (MDR) human ovarian (NCI/ADR), human colon (HT-29) and human pancreatic (PANC-1) cancer cell lines. 3'-Difluorovinyl taxoids exhibit several to 16 times better activity against MCF7, HT-29 and PANC-1 cell lines and up to three orders of magnitude higher potency against NCI/ADR cell line as compared to paclitaxel. Structure-activity relationship study shows the critical importance of the C2 modifications on the activity against MDR cancer cell line, while the C10 modifications have a rather minor effect on the potency with some exceptions. The effect of the C2 modifications on potency against MCF7 cell line increases in the following order: H < F < Cl
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Affiliation(s)
- Larissa Kuznetsova
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Liang Sun
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Jin Chen
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Xianrui Zhao
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Joshua Seitz
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Manisha Das
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Yuan Li
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
| | - Jean M. Veith
- Department of Experimental Therapeutics, Grace Cancer Drug Center, Roswell Park Memorial Institute, Elm and Carlton Streets, Buffalo, New York, 14263
| | - Paula Pera
- Department of Experimental Therapeutics, Grace Cancer Drug Center, Roswell Park Memorial Institute, Elm and Carlton Streets, Buffalo, New York, 14263
| | - Ralph J. Bernacki
- Department of Experimental Therapeutics, Grace Cancer Drug Center, Roswell Park Memorial Institute, Elm and Carlton Streets, Buffalo, New York, 14263
| | - Shujun Xia
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Susan B. Horwitz
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Iwao Ojima
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
- Institute of Chemical Biology & Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
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23
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Computational approaches to enhance activity of taxanes as antimitotic agent. Med Chem Res 2012. [DOI: 10.1007/s00044-011-9779-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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24
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Davies SG, Fletcher AM, Lv L, Roberts PM, Thomson JE. Asymmetric synthesis of (−)-(R)-sitagliptin. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.025] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Wu J, Zhao W, Cao S. Synthesis of Difluoromethyl-Containing α-Acyloxycarboxamide Derivatives through a Passerini Reaction and Desulfonylation. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101518] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Wu J, Li H, Cao S. Novel synthesis of pseudopeptides bearing a difluoromethyl group by Ugi reaction and desulfanylation. Beilstein J Org Chem 2011; 7:1070-4. [PMID: 21915210 PMCID: PMC3170163 DOI: 10.3762/bjoc.7.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 07/12/2011] [Indexed: 11/23/2022] Open
Abstract
Thirteen difluoromethyl-containing pseudopeptides were synthesized by Ugi reaction using the novel building block 2,2-difluoro-2-(phenylthio)acetic acid (2) as one component, followed by removal of the phenylsulfanyl protecting group in the presence of tributyltin hydride and azobisisobutyronitrile.
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Affiliation(s)
- Jingjing Wu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
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27
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Iaroshenko VO, Specowius V, Vlach K, Vilches-Herrera M, Ostrovskyi D, Mkrtchyan S, Villinger A, Langer P. A general strategy for the synthesis of difluoromethyl-containing pyrazoles, pyridines and pyrimidines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Qi CM, Yang LC, Wang LY. Studies on Tripolycyanamide Formaldehyde Resin-Pd Complex and Its Use in the Synthesis of the Branch of Paclitaxel. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20030211204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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An efficient three-component domino synthesis of difluoromethyl-containing 1,4-dihydropyridines under solvent and catalyst free conditions. Sci China Chem 2010. [DOI: 10.1007/s11426-010-4005-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Wu J, Cao S, Liu N, Shen L, Yu J, Zhang J, Li H, Qian X. A general strategy for construction of a difluoromethyl compound library and its application in synthesis of pseudopeptides bearing a terminal difluoromethyl group. Org Biomol Chem 2010; 8:2386-91. [PMID: 20448896 DOI: 10.1039/c000835d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Jingjing Wu
- Shanghai Key Laboratory of Chemical Biology, Center of Fluorine Chemical Technology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
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31
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Kuznetsova LV, Pepe A, Ungureanu IM, Pera P, Bernacki RJ, Ojima I. Syntheses and Structure-Activity Relationships of Novel 3'-Difluoromethyl and 3'-Trifluoromethyl-Taxoids. J Fluor Chem 2008; 129:817-828. [PMID: 19448839 DOI: 10.1016/j.jfluchem.2008.05.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
A series of novel 3'-difluoromethyl-taxoids and 3'-trifluoromethyl-taxoids with modifications at the C2 and C10 positions were synthesized and evaluated for their in vitro cytotoxicities against human breast carcinoma (MCF7-S, MCF7-R, LCC6-WT, LCC6-MDR), non-small cell lung carcinoma (H460) and colon adenocarcinoma (HT-29) cell lines. These second-generation fluoro-taxoids exhibited several times to more than 20 times better potency than paclitaxel against drug-sensitive cancer cell lines, MCF7-S, LCC6-WT, H460, and HT-29. These fluoro-taxoids also possess two orders of magnitude higher potency than paclitaxel against drug-resistant cancer cell lines, MCF7-R and LCC6-MDR. Structure-activity relationship study shows the importance of the C10 modification for increasing the activity against multidrug-resistant cancer cell lines. Effects of the C2-benzoate modifications on the potency in the 3-difluoromethyl-taxoid series are very clear (i.e., F < MeO < Cl < N(3)), while those in the 3-trifluoromethyl-taxoid series are less obvious. Also, different trends in the sensitivity to the C2-substitution are observed between drug-sensitive cell lines and drug-resistant cancer cell lines that overexpress efflux pumps.
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Affiliation(s)
- Larissa V Kuznetsova
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400
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32
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Verma RP, Hansch C. Taxane analogues against breast cancer: a quantitative structure-activity relationship study. ChemMedChem 2008; 3:642-52. [PMID: 18196507 DOI: 10.1002/cmdc.200700278] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Breast cancer is the second leading cause of cancer death among women in the United States. Two taxane analogues, taxol and taxotere, are the most important antimitotic drugs currently in clinical use for the treatment of breast cancers. However, recent reports have indicated that the use of these drugs often results in various undesired side effects as well as multi-drug resistance. These limitations have led to the development of new taxane derivatives with fewer side effects, superior pharmacological properties, and improved anticancer activity to maximize the induced benefits for breast cancer patients. Herein, four series of taxane derivatives were used to correlate their inhibitory activities against breast cancer cells with their hydrophobic and steric properties in order to understand their chemical-biological interactions. The resulting QSARs show that the inhibitory activities of taxane analogues against breast cancers are mainly dependent either on their hydrophobicity or the hydrophobic/molar refractivity descriptor of their substituents. A parabolic correlation with MR(Y) is the most encouraging example, in which the optimum value of this parameter is well defined. We believe this correlation may prove to be an adequate predictive model that can help provide guidance in design and synthesis and subsequently yield highly specific compounds that may have high anti-breast-cancer activity with fewer side effects and superior pharmacological properties. On the basis of this QSAR model, five compounds are suggested as potential synthetic targets. Internal (cross-validation (LOO-q(2) and LMO-q(2)), quality factor (Q), Fischer statistics (F), and Y-randomization) and external validation tests have validated all the QSAR models.
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Affiliation(s)
- Rajeshwar P Verma
- Department of Chemistry, Pomona College, 645 North College Avenue, Claremont, CA 91711, USA.
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Li X, Yu J, Xu S, Wang N, Yang H, Yan Z, Cheng G, Liu G. Chemical conjugation of muramyl dipeptide and paclitaxel to explore the combination of immunotherapy and chemotherapy for cancer. Glycoconj J 2007; 25:415-25. [PMID: 18161023 DOI: 10.1007/s10719-007-9095-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2007] [Revised: 11/19/2007] [Accepted: 11/21/2007] [Indexed: 01/07/2023]
Abstract
Paclitaxel (Taxol) conjugated to muramyl dipeptide (MDP) is described. Biological testing showed that the conjugation of MDP at 2'-O-paclitaxel (2'- O -MTC-01) not only has antitumor activity, but also have immunoenhancement capacity. Compared with paclitaxel or MDP alone or with a mixture of paclitaxel + MDP, 2'- O -MTC-01 significantly increases the production and expression of TNF-alpha and IL-12 from mouse peritoneal macrophages, which demonstrates a synergism of MDP and paclitaxel in one conjugated molecule.
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Affiliation(s)
- Xuqin Li
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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34
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Yang Y, Wang J, Kayser M. Approaches to the synthesis of enantiopure α-hydroxy-β-lactams with functionalized side chains. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.08.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Qi CM, Wang YF, Yang LC. A novel method to synthesize docetaxel and its isomer with high yields. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420430] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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36
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Magueur G, Crousse B, Bonnet-Delpon D. Direct access to CF3-propargyl amines and conversion to difluoromethyl imines. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.02.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ojima I. Use of fluorine in the medicinal chemistry and chemical biology of bioactive compounds--a case study on fluorinated taxane anticancer agents. Chembiochem 2004; 5:628-35. [PMID: 15122634 DOI: 10.1002/cbic.200300844] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Iwao Ojima
- Institute of Chemical Biology and Drug Discovery and Department of Chemistry, State University of New York, Stony Brook, NY 11794-3400, USA.
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39
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Dejaegher Y, De Kimpe N. Rearrangement of 4-(1-haloalkyl)- and 4-(2-haloalkyl)-2-azetidinones into methyl omega-alkylaminopentenoates via transient aziridines and azetidines. J Org Chem 2004; 69:5974-85. [PMID: 15373481 DOI: 10.1021/jo040161b] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of 4-(1-haloalkyl)-2-azetidinones and 4-(2-haloalkyl)-2-azetidinones was investigated with use of the Staudinger reaction between in situ generated ketenes and alpha-haloimines or beta-haloimines. This new class of functionalized 2-azetidinones was further evaluated for its potential use as intermediates in the synthesis of highly functionalized compounds. The reaction of 4-(1-haloalkyl)-2-azetidinones and 4-(2-haloalkyl)-2-azetidinones with sodium methoxide in methanol yielded ring-opened products, i.e., methyl 2-alkoxy-4-(alkylamino)pentenoate and methyl 5-(alkylamino)pentenoate, respectively. Further attention was paid in detail to the reaction mechanism involved in this peculiar transformation. It was proven that these reactions proceeded via intermediate aziridines or azetidines.
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Affiliation(s)
- Yves Dejaegher
- Department of Organic Chemistry, Faculty of Agricultural and Applied Biological Sciences, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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40
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Qi X, Lee SH, Yoon J, Lee YS. Synthesis of novel thiol taxoids based on the 7,10-di-(2,2,2-trichloroethyloxycarbonyl)-10-deacetylbaccatin III: both the syn and anti 10-deacetyl-2′-deoxy-2′-mercaptopaclitaxels. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.03.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Kuznetsova L, Ungureanu IM, Pepe A, Zanardi I, Wu X, Ojima I. Trifluoromethyl- and difluoromethyl-β-lactams as useful building blocks for the synthesis of fluorinated amino acids, dipeptides, and fluoro-taxoids. J Fluor Chem 2004. [DOI: 10.1016/j.jfluchem.2003.12.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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42
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Baloglu E, Hoch JM, Chatterjee SK, Ravindra R, Bane S, Kingston DGI. Synthesis and biological evaluation of C-3'NH/C-10 and C-2/C-10 modified paclitaxel analogues. Bioorg Med Chem 2003; 11:1557-68. [PMID: 12628679 DOI: 10.1016/s0968-0896(02)00608-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Concurrent modifications on the C-3'NH/C-10, and C-2/C-10 positions on paclitaxel were carried out as a way of investigating possible synergistic effects. The biological activities of these analogues were evaluated in both a microtubule assembly assay and human ovarian cancer (A2780) and prostate cancer (PC3) cytotoxicity assay. In some cases the doubly modified analogues were more active than would have been predicted based on the activity of the singly modified analogues, indicating probable synergistic effects.
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Affiliation(s)
- Erkan Baloglu
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
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Kingston DGI, Jagtap PG, Yuan H, Samala L. The chemistry of taxol and related taxoids. FORTSCHRITTE DER CHEMIE ORGANISCHER NATURSTOFFE = PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS. PROGRES DANS LA CHIMIE DES SUBSTANCES ORGANIQUES NATURELLES 2002; 84:53-225. [PMID: 12132389 DOI: 10.1007/978-3-7091-6160-9_2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- D G I Kingston
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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Jagtap PG, Baloglu E, Barron DM, Bane S, Kingston DGI. Design and synthesis of a combinatorial chemistry library of 7-acyl, 10-acyl, and 7,10-diacyl analogues of paclitaxel (taxol) using solid phase synthesis. JOURNAL OF NATURAL PRODUCTS 2002; 65:1136-1142. [PMID: 12193017 DOI: 10.1021/np010552a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A series of 10-acyl and 7,10-diacyl paclitaxel analogues (7a-7e and 9a-9u) have been synthesized using a solid phase combinatorial chemistry approach, and a second series of 7-acyl-10-deacetylpaclitaxel analogues have been prepared by conventional chemistry. In the first series, 10-deacetylpaclitaxel (4) was linked through its 2'-hydroxyl group using 1% polystyrene-divinyl benzene resin functionalized with butyldiethylsilane linker (PS-DES) and then acylated at the C-10 hydroxyl group with various anhydrides and dialkyl dicarbonates in the presence of CeCl(3). The resin-bound C-10 acylated paclitaxel derivatives (6a-6e) were then treated with various carboxylic acids in the presence of 1,3-diisopropylcarbodiimide in toluene to provide polymer-supported 7,10-diacylpaclitaxels (8a-8u). These 7-acyl- and 7,10-diacylpaclitaxels (6a-6e and 8a-8u) were cleaved from the resin to give the 24 paclitaxel analogues 7a-7e and 9a-9u. Nine 7-acyl-10-deacetylpaclitaxel analogues were also prepared by conventional chemistry. Methodology to determine the tubulin-assembly activity of compounds prepared in small quantities by a combinatorial approach has been developed, and four analogues with improved tubulin-assembly activity as compared with paclitaxel were found, together with two analogues with improved cytotoxicity.
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Affiliation(s)
- Prakash G Jagtap
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
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Kayser MM, Yang Y, Mihovilovic MD, Feicht A, Rochon FD. Bakers yeast-catalyzed synthesis of optically pure 4-tert-butyl-3-hydroxy beta-lactam cis-(3R,4S) and trans-(3R,4R) diastereomers. CAN J CHEM 2002. [DOI: 10.1139/v02-108] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Baker's yeast (Saccharomyces cerevisiae) reductions were applied to the synthesis of the paclitaxel C-13 side-chain analogue. An easily synthesized alpha-keto-beta-lactam (1-(4-methoxyphenyl)-4-tert-butylazetidin-2,3-dione, 4) was reduced by yeast cells to give a mixture of enantiomerically pure cis and trans isomers. Both compounds were isolated and characterized, and their absolute configurations were confirmed by X-ray crystallographic analysis.Key words: Taxol®, C-13 side-chain, paclitaxel analogues, optically pure alpha-hydroxy-beta-lactams, baker's yeast-catalyzed reductions.
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