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Tokushige K, Kobori Y, Asai S, Abe T. Indoline hemiaminals: a platform for accessing anthranilic acid derivatives through oxidative deformylation. Org Biomol Chem 2024. [PMID: 39189407 DOI: 10.1039/d4ob01218f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
2-Aminobenzoyl chlorides possess both a nucleophilic nitrogen atom and an electrophilic carbonyl group, and thus selective acylation of nucleophiles is challenging; self-dimerization and sluggish reactions occur. Herein, we introduce a new synthetic protocol using 2-aminobenzoyl surrogates, allowing concise entry to decorated 2-aminobenzoyl derivatives in the absence of transition metals, acid chlorides, and specific reagents.
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Affiliation(s)
- Keisuke Tokushige
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 7008530, Japan.
| | - Yuito Kobori
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 7008530, Japan.
| | - Shota Asai
- School of Pharmacy, Shujitsu University, 1-6-1, Nishigawara, Naka-ku, Okayama, 7038516, Japan
| | - Takumi Abe
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 7008530, Japan.
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2
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Ferric Chloride Catalyzed 1,3-Rearrangement of (Phenoxymethyl)heteroarenes to (Heteroarylmethyl)phenols. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Wang X, Yang Z, Miu W, Ye P, Bai M, Duan S, Shen X. A simple and convenient synthesis of 3-salicyloylquinoline-4-carboxylic esters from chromone and isatin. RSC Adv 2019; 9:37057-37060. [PMID: 35539051 PMCID: PMC9075531 DOI: 10.1039/c9ra08124k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 10/28/2019] [Indexed: 01/26/2023] Open
Abstract
A simple and convenient synthesis of 3-salicyloylquinoline-4-carboxylic esters has been developed through an AlCl3-catalyzed reaction of easily available Baylis-Hillman adducts from chromones and isatin-derivatives. This reaction involves esterification, cyclization and ring opening in a one-step process, and provides an efficient approach for easy access to a series of valuable salicyloylquinoline derivatives with high yields. Moreover, this protocol offers several advantages, such as availability of starting materials, economic availability, operational simplicity and mild reaction conditions.
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Affiliation(s)
- Xuequan Wang
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province, School of Science, Honghe University Mengzi Yunnan 661100 China
| | - Zhixin Yang
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province, School of Science, Honghe University Mengzi Yunnan 661100 China
| | - Weihang Miu
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province, School of Science, Honghe University Mengzi Yunnan 661100 China
| | - Pingting Ye
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province, School of Science, Honghe University Mengzi Yunnan 661100 China
| | - Mengjiao Bai
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province, School of Science, Honghe University Mengzi Yunnan 661100 China
| | - Suyue Duan
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province, School of Science, Honghe University Mengzi Yunnan 661100 China
| | - Xianfu Shen
- Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control, Qujing Normal University 655011 P. R. China
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4
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Chirkova ZV, Kabanova MV, Filimonov SI. Synthesis of Functional Derivatives of 3-Acyl-1-hydroxyindole-5,6-dicarboxylic Acids. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219030447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Rahim A, Shaik SP, Baig MF, Alarifi A, Kamal A. Iodine mediated oxidative cross-coupling of unprotected anilines and heteroarylation of benzothiazoles with 2-methylquinoline. Org Biomol Chem 2019; 16:635-644. [PMID: 29303199 DOI: 10.1039/c7ob02241g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iodine-promoted oxidative C-H/C-H cross-coupling of unprotected anilines and 2-methylquinoline to furnish C4-carbonylated aniline (4-aminophenyl)(quinoline-2-yl) methanones in moderate to good yields has been demonstrated. This work provides the first site-selective approach for the synthesis of free amino groups containing methanones including unprecedented C-H functionalization rather than the N-H functionalization of unprotected anilines via the Kornblum oxidation of 2-methylquinoline. Furthermore, we noticed that the incorporation of KOH under standard conditions provides 2-heteroarylbenzothiazoles from benzothiazoles and 2-methylquinoline in good to excellent yields. These transformations do not require any transition metals or peroxides and tolerate various functional groups such as methoxy, hydroxy, bromo, chloro and nitro groups. Moreover, a plausible mechanistic pathway is proposed.
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Affiliation(s)
- Abdul Rahim
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.
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6
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Li L, Jiang S, Li X, Liu Y, Su J, Chen J. Recent advances in trimethoxyphenyl (TMP) based tubulin inhibitors targeting the colchicine binding site. Eur J Med Chem 2018; 151:482-494. [PMID: 29649743 DOI: 10.1016/j.ejmech.2018.04.011] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 12/16/2022]
Abstract
Microtubules (composed of α- and β-tubulin heterodimers) play a pivotal role in mitosis and cell division, and are regarded as an excellent target for chemotherapeutic agents to treat cancer. There are four unique binding sites in tubulin to which taxanes, vinca alkaloids, laulimalide and colchicine bind respectively. While several tubulin inhibitors that bind to the taxane or vinca alkaloid binding sites have been approved by FDA, currently there are no FDA approved tubulin inhibitors targeting the colchicine binding site. Tubulin inhibitors that bind to the colchicine binding site have therapeutic advantages over taxanes and vinca alkaloids, for example, they can be administered orally, have less drug-drug interaction potential, and are less prone to develop multi-drug resistance. Typically, tubulin inhibitors that bind to the colchicine binding site bear the trimethoxyphenyl (TMP) moiety which is essential for interaction with tubulin. Over the last decade, a variety of molecules bearing the TMP moiety have been designed and synthesized as tubulin inhibitors for cancer treatment. In this review, we focus on the TMP analogs that are designed based on CA-4, indole, chalcone, colchicine and natural product scaffolds which are known to interact with the colchicine binding site in tubulin. The challenges and future direction of the TMP based tubulin inhibitors are also discussed in detail.
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Affiliation(s)
- Ling Li
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Sibo Jiang
- College of Pharmacy, University of Florida, Orlando, FL 32827, USA
| | - Xiaoxun Li
- Chengdu Easton Biopharmaceuticals Co., Ltd., Chengdu 611731, China
| | - Yao Liu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jing Su
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.
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7
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Grenet E, Waser J. Iridium- and Rhodium-Catalyzed Directed C-H Heteroarylation of Benzaldehydes with Benziodoxolone Hypervalent Iodine Reagents. Org Lett 2018; 20:1473-1476. [PMID: 29466016 DOI: 10.1021/acs.orglett.8b00337] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The C-H heteroarylation of benzaldehydes with indoles and pyrroles was realized using the benziodoxolone hypervalent iodine reagents indole- and pyrroleBX. Functionalization of the aldehyde C-H bond using either an o-hydroxy or amino directing group and catalyzed by an iridium or a rhodium complex allowed the synthesis of salicyloylindoles and (2-sulfonamino)benzoylindoles, respectively, with good to excellent yields (74-98%). This new transformation could be carried out under mild conditions (rt to 40 °C) and tolerated a broad range of functionalities, such as ethers, halogens, carbonyls, or nitro groups.
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Affiliation(s)
- Erwann Grenet
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO , BCH 4306, 1015 Lausanne, Switzerland
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO , BCH 4306, 1015 Lausanne, Switzerland
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8
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Xu Q, Bao K, Sun M, Xu J, Wang Y, Tian H, Zuo D, Guan Q, Wu Y, Zhang W. Design, synthesis and structure-activity relationship of 3,6-diaryl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines as novel tubulin inhibitors. Sci Rep 2017; 7:11997. [PMID: 28931885 PMCID: PMC5607265 DOI: 10.1038/s41598-017-10860-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 08/11/2017] [Indexed: 12/18/2022] Open
Abstract
A novel series of 3,6-diaryl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines were designed, synthesized and biologically evaluated as vinylogous CA-4 analogues, which involved a rigid [1,2,4]triazolo[3,4-b][1,3,4]thiadiazine scaffold to fix the configuration of (Z,E)-butadiene linker of A-ring and B-ring. Among these rigidly vinylogous CA-4 analogues, compounds 4d, 5b, 5i, 6c, 6e, 6g, 6i and 6k showed excellent antiproliferative activities against SGC-7901, A549 and HT-1080 cell lines with IC50 values at the nanomolar level. Compound 6i showed the most highly active antiproliferative activity against the three human cancer cell lines with an IC50 values of 0.011-0.015 µM, which are comparable to those of CA-4 (IC50 = 0.009-0.013 µM). Interestingly, SAR studies revealed that 3,4-methylenedioxyphenyl, 3,4-dimethoxyphenyl, 3-methoxyphenyl and 4-methoxyphenyl could replace the classic 3,4,5-trimethoxyphenyl in CA-4 structure and keep antiproliferative activity in this series of designed compounds. Tubulin polymerization experiments showed that 6i could effectively inhibit tubulin polymerization, which was corresponded with CA-4, and immunostaining experiments suggested that 6i significantly disrupted microtubule/tubulin dynamics. Furthermore, 6i potently induced cell cycle arrest at G2/M phase in SGC-7901 cells. Competitive binding assays and docking studies suggested that compound 6i binds to the tubulin perfectly at the colchicine binding site. Taken together, these results revealed that 6i may become a promising lead compound for new anticancer drugs discovery.
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Affiliation(s)
- Qile Xu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Kai Bao
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Maolin Sun
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Jingwen Xu
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Yueting Wang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Haiqiu Tian
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Daiying Zuo
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Qi Guan
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Yingliang Wu
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China.
| | - Weige Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110016, China.
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9
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Nakamura A, Tanaka S, Imamiya A, Takane R, Ohta C, Fujimura K, Maegawa T, Miki Y. Synthesis of 3-acylindoles by oxidative rearrangement of 2-aminochalcones using a hypervalent iodine reagent and cyclization sequence. Org Biomol Chem 2017; 15:6702-6705. [PMID: 28749517 DOI: 10.1039/c7ob01536d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An efficient one-pot 3-acylindole synthesis by oxidative rearrangement of 2-aminochalcones and sequential cyclization has been developed.
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Affiliation(s)
- Akira Nakamura
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Satoshi Tanaka
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Akira Imamiya
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Reo Takane
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Chiaki Ohta
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Kazuma Fujimura
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
| | - Yasuyoshi Miki
- School of Pharmaceutical Sciences
- Kindai University
- Higashi-osaka
- Japan
- Research Organization of Science and Technology
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10
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Indole molecules as inhibitors of tubulin polymerization: potential new anticancer agents, an update (2013–2015). Future Med Chem 2016; 8:1291-316. [DOI: 10.4155/fmc-2016-0047] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Discovery of new indole-based tubulin polymerization inhibitors will continue to dominate the synthetic efforts of many medicinal chemists working in the field. The indole ring system is an essential part of several tubulin inhibitors identified in the recent years. The present review article will update the synthesis, anticancer and tubulin inhibition activities of several important new indole classes such as 2-phenylindoles (28, 29 & 30), oxindoles (35 & 38), indole-3-acrylamides (44), indolines (46), aroylindoles (49), carbozoles (75, 76 & 82), azacarbolines (87) and annulated indoles (100–105).
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11
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Trabbic CJ, George SM, Alexander EM, Du S, Offenbacher JM, Crissman EJ, Overmeyer JH, Maltese WA, Erhardt PW. Synthesis and biological evaluation of isomeric methoxy substitutions on anti-cancer indolyl-pyridinyl-propenones: Effects on potency and mode of activity. Eur J Med Chem 2016; 122:79-91. [PMID: 27343855 DOI: 10.1016/j.ejmech.2016.06.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/07/2016] [Accepted: 06/10/2016] [Indexed: 12/20/2022]
Abstract
Certain indolyl-pyridinyl-propenone analogues kill glioblastoma cells that have become resistant to conventional therapeutic drugs. Some of these analogues induce a novel form of non-apoptotic cell death called methuosis, while others primarily cause microtubule disruption. Ready access to 5-indole substitution has allowed characterization of this position to be important for both types of mechanisms when a simple methoxy group is present. We now report the syntheses and biological effects of isomeric methoxy substitutions on the indole ring. Additionally, analogues containing a trimethoxyphenyl group in place of the pyridinyl moiety were evaluated for anticancer activity. The results demonstrate that the location of the methoxy group can alter both the potency and the mechanism of cell death. Remarkably, changing the methoxy from the 5-position to the 6-position switched the biological activity from induction of methuosis to disruption of microtubules. The latter may represent a prototype for a new class of mitotic inhibitors with potential therapeutic utility.
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Affiliation(s)
- Christopher J Trabbic
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, 2801 W. Bancroft Ave., Toledo, OH 4360, USA
| | - Sage M George
- Department of Biochemistry and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, USA
| | - Evan M Alexander
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, 2801 W. Bancroft Ave., Toledo, OH 4360, USA
| | - Shengnan Du
- Department of Biochemistry and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, USA
| | - Jennifer M Offenbacher
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, 2801 W. Bancroft Ave., Toledo, OH 4360, USA
| | - Emily J Crissman
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, 2801 W. Bancroft Ave., Toledo, OH 4360, USA
| | - Jean H Overmeyer
- Department of Biochemistry and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, USA
| | - William A Maltese
- Department of Biochemistry and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, USA.
| | - Paul W Erhardt
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, 2801 W. Bancroft Ave., Toledo, OH 4360, USA.
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12
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Nepali K, Ojha R, Lee HY, Liou JP. Early investigational tubulin inhibitors as novel cancer therapeutics. Expert Opin Investig Drugs 2016; 25:917-36. [PMID: 27186892 DOI: 10.1080/13543784.2016.1189901] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Microtubules represent one of the most logical and strategic molecular targets amongst the current targets for chemotherapy, alongside DNA. In the past decade, tubulin inhibitors as cancer therapeutics have been an area of focus due to the improved understanding and biological relevance of microtubules in cellular functions. Fueled by the objective of developing novel chemotherapeutics and with the aim of establishing the benefits of tubulin inhibition, several clinical trials have been conducted with others ongoing. AREA COVERED At present, the antitubulin development pipeline contains an armful of agents under clinical investigation. This review focuses on novel tubulin inhibitors as cancer therapeutics. The article covers the agents which have completed the phase II studies along with the agents demonstrating promising results in phase I studies. EXPERT OPINION Countless clinical trials evaluating the efficacy, safety and pharmacokinetics of novel tubulin inhibitors highlights the scientific efforts being paid to establish their candidature as cancer therapeutics. Colchicine binding site inhibitors as vascular disrupting agents (VDAs) and new taxanes appear to be the most likely agents for future clinical interest. Numerous agents have demonstrated clinical benefits in terms of efficacy and survival in phase I and II studies. However conclusive benefits can only be ascertained on the basis of phase III studies.
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Affiliation(s)
- Kunal Nepali
- a School of Pharmacy, College of Pharmacy , Taipei Medical University , Taipei , Taiwan
| | - Ritu Ojha
- a School of Pharmacy, College of Pharmacy , Taipei Medical University , Taipei , Taiwan
| | - Hsueh-Yun Lee
- a School of Pharmacy, College of Pharmacy , Taipei Medical University , Taipei , Taiwan
| | - Jing-Ping Liou
- a School of Pharmacy, College of Pharmacy , Taipei Medical University , Taipei , Taiwan
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13
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Patel VK, Rajak H. Synthesis, biological evaluation and molecular docking studies of 2-amino-3,4,5-trimethoxyaroylindole derivatives as novel anticancer agents. Bioorg Med Chem Lett 2016; 26:2115-8. [DOI: 10.1016/j.bmcl.2016.03.081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 03/04/2016] [Accepted: 03/24/2016] [Indexed: 11/25/2022]
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14
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Liu M, Chen T, Zhou Y, Yin SF. Transition metal-free oxidative ortho-acylation of phenols with N-heteroarylmethanes via double C–H activation. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01301e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The direct oxidative acylation of phenols with N-heteroarylmethanes via sp3C–H and sp2C–H double activation was achieved under metal-free conditions. The reaction proceeds in a facile I2/DMSO/O2 system regio-selectively to produce valuable (2-hydroxyphenyl)arylmethanones. A plausible mechanism was proposed.
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Affiliation(s)
- Min Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Tieqiao Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Yongbo Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
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