51
|
Borah B, Dhar Dwivedi K, Chowhan LR. 4‐Hydroxycoumarin: A Versatile Substrate for Transition‐metal‐free Multicomponent Synthesis of Bioactive Heterocycles. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100550] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| | - Kartikey Dhar Dwivedi
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| | - L. Raju Chowhan
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| |
Collapse
|
52
|
Freidooni J, Rad-Moghadam K, Saeedi-Mirakmahaleh M. ZrO 2 and Rice-Husk-Xanthate Adduct: An Efficient Bioderived Catalyst for Synthesis of Spiro[4 H-pyran-4,3′-indoline]s. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1998145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jannat Freidooni
- Chemistry Department, Payam Noor University of Mashhad, Mashhad, Iran
| | - Kurosh Rad-Moghadam
- Chemistry Department, Faculty of sciences, University of Guilan, Rasht, Iran
| | | |
Collapse
|
53
|
A strategic approach for synthesis of benzimidazo[2,1-b]thiazolidinone appended dispirooxindole hybrids via [3 + 2] cycloaddition using fluoro-ethanol as solvent. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
54
|
Litvajova M, Sorrentino E, Twamley B, Connon SJ. Base-free enantioselective S N2 alkylation of 2-oxindoles via bifunctional phase-transfer catalysis. Beilstein J Org Chem 2021; 17:2287-2294. [PMID: 34621391 PMCID: PMC8450950 DOI: 10.3762/bjoc.17.146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/18/2021] [Indexed: 11/23/2022] Open
Abstract
N-Protected oxindole derivatives of unprecedented malleability bearing ester moieties at C-3 have been shown to participate in enantioselective phase-transfer-catalysed alkylations promoted by ad-hoc designed quaternary ammonium salts derived from quinine bearing hydrogen-bond donating substituents. For the first time in such phase-transfer-catalysed enolate alkylations, the reactions were carried out under base-free conditions. It was found that urea-based catalysts outperformed squaramide derivatives, and that the installation of a chlorine atom adjacent to the catalyst’s quinoline moiety aided in avoiding selectivity-reducing complications related to the production of HBr in these processes. The influence of steric and electronic factors from both the perspective of the nucleophile and electrophile were investigated and levels of enantiocontrol up to 90% ee obtained. The synthetic utility of the methodology was demonstrated via the concise enantioselective synthesis of a potent CRTH2 receptor antagonist.
Collapse
Affiliation(s)
- Mili Litvajova
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Emiliano Sorrentino
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Stephen J Connon
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| |
Collapse
|
55
|
Nivetha N, Thangamani A. Dispirooxindole-pyrrolothiazoles: Synthesis, anti-cancer activity, molecular docking and green chemistry metrics evaluation. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130716] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
56
|
Dhote PS, Patel P, Vanka K, Ramana CV. Total synthesis of the pseudoindoxyl class of natural products. Org Biomol Chem 2021; 19:7970-7994. [PMID: 34486008 DOI: 10.1039/d1ob01285a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pseudoindoxyl sub-structural motif, amongst the large set of the indole class of alkaloids, represents a unique subset of the oxygenated indole class of the alkaloid family. A majority of this class of natural products contains complex bridged/polycyclic scaffolds with interesting biological profiles. They are thus attractive synthetic targets. Starting from 1963, twenty-eight natural products having the pseudoindoxyl scaffold have been isolated, among which the synthesis of 13 natural products has been accomplished. In this review, we highlight the completed as well as the formal total synthesis of the natural products with a spiro-pseudoindoxyl ring, with a focus on their development. The challenges and the future perspective based on the recent developments in the field will also be discussed. We strongly believe that this review will not only update but also attract the attention of researchers in dealing with the synthesis of pseudoindoxyl compounds.
Collapse
Affiliation(s)
- Pawan S Dhote
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pitambar Patel
- CSIR-North East Institute of Science and Technology, Assam-785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Kumar Vanka
- Physical Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Chepuri V Ramana
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| |
Collapse
|
57
|
Dočekal V, Vopálenská A, Měrka P, Konečná K, Jand'ourek O, Pour M, Císařová I, Veselý J. Enantioselective Construction of Spirooxindole-Fused Cyclopentanes. J Org Chem 2021; 86:12623-12643. [PMID: 34283607 DOI: 10.1021/acs.joc.1c01116] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present study reports an asymmetric organocatalytic cascade reaction of oxindole derivates with α,β-unsaturated aldehydes efficiently catalyzed by simple chiral secondary amine. Spirooxindole-fused cyclopentanes were produced in excellent isolated yields (up to 98%) with excellent enantiopurities (up to 99% ee) and moderate to high diastereoselectivities. The synthetic utility of the protocol was exemplified on a set of additional transformations of the corresponding spiro compounds. In addition, a study showing the promising biological activity of selected enantioenriched products was accomplished.
Collapse
Affiliation(s)
- Vojtěch Dočekal
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Andrea Vopálenská
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Pavel Měrka
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Klára Konečná
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Ondřej Jand'ourek
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| |
Collapse
|
58
|
Mirzaei F, Bayat M, Nasri S. A one-pot synthesis of piperidinium spirooxindoline-pyridineolates and indole-substituted pyridones in aqueous or ethanol medium. Mol Divers 2021; 26:2039-2048. [PMID: 34528212 DOI: 10.1007/s11030-021-10313-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/06/2021] [Indexed: 11/24/2022]
Abstract
Piperidinium spirooxindoline-pyridineolate has been prepared via one-pot multicomponent reaction of isatin, malononitrile, cyanoacetohydrazide, and piperidine in water or ethanol medium at room temperature. In addition, the synthesis of two indole-substituted 2-pyridones from indole-3-carbaldehyde, malononitrile, and cyanoacetohydrazide in the presence of piperidine is described.
Collapse
Affiliation(s)
- Faezeh Mirzaei
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran.
| | - Shima Nasri
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| |
Collapse
|
59
|
Ding Y, Kuang J, Xiao X, Wang L, Ma Y. Environmentally Benign Synthesis of Quinoline-Spiroquinazolinones by Iron-Catalyzed Dehydrogenative [4 + 2] Cycloaddition of Secondary/Tertiary Anilines and 4-Methylene-quinazolinones. J Org Chem 2021; 86:12257-12266. [PMID: 34387487 DOI: 10.1021/acs.joc.1c01602] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report an efficient iron-catalyzed cross-dehydrogenative coupling [4 + 2] annulation of secondary/tertiary anilines with quinazolinones to generate quinoline-spiroquinzolinones. The reaction proceeds smoothly with a relatively broad variety of functional groups, a cheap transition metal catalyst (FeCl3), and environmentally friendly oxidant (H2O2/O2) under mild reaction conditions. Creatively, N-methylanilines are employed for the first time for the cycloaddition as both methyl and methylene sources attached to the N atom of tetrahydroquinolines.
Collapse
Affiliation(s)
- Yuxin Ding
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, P R China.,School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P R China
| | - Jinqiang Kuang
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, P R China
| | - Xuqiong Xiao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, No. 2318 Yuhangtang Road, Hangzhou 311121, P R China
| | - Lei Wang
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, P R China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, P R China.,School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P R China
| |
Collapse
|
60
|
Lv C, Meng X, Wang M, Zhang Y, Hu C, Kim CK, Su Z. Mechanism and Selectivity of Cyclopropanation of 3-Alkenyl-oxindoles with Sulfoxonium Ylides Catalyzed by a Chiral N, N'-Dioxide-Mg(II) Complex. J Org Chem 2021; 86:11683-11697. [PMID: 34343433 DOI: 10.1021/acs.joc.1c01199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mechanism and stereoselectivity of an asymmetric cyclopropanation reaction between 3-alkenyl-oxindole and sulfoxonium ylide catalyzed by a chiral N,N'-dioxide-Mg(II) complex were explored using the B3LYP-D3(BJ) functional and the def2-TZVP basis set. The noncatalytic reaction occurred via a stepwise mechanism, with activation barriers of 21.6-23.5 kcal mol-1. The C2-Cα bond formed followed by the carbanion SN2 substitution, constructing a three-membered ring in spiro-cyclopropyl oxindoles, accompanied by the release of dimethylsulfoxide. The electron-withdrawing N-protecting t-butyloxy carbonyl (Boc) and acetyl (Ac) groups in isatin enhanced the local electrophilicity of the C2 atom and the repulsion between the two COPh groups in the reactants, contributing to high reactivity as well as good diastereoselectivity results. The N-Boc-3-phenacylideneoxindole coordinated to the chiral ligand (L-PiPr2) in a bidentate fashion, forming a hexacoordinate-Mg(II) complex as the reactive species. The origin of enantioselectivity was from the shielding effect of 2,6-diisopropylphenyl groups in the ligand toward the si-face of oxindole. The repulsion between the SO(CH3)2 and COPh groups in 3-alkenyl-oxindole and the neighboring ortho-iPr group in the ligand directed the re-face of ylide to attack the re-face of oxindole preferably, contributing to the high diastereoselectivity of the product. A metal-ion-ligand matching relationship was important for a good asymmetric induction effect of the chiral N,N'-dioxide-metal catalyst. A large chiral cavity in the Zn(II) catalyst weakened the shielding effect of 2,6-diisopropylphenyl groups in the ligand toward the prochiral face of oxindole, leading to inferior enantioselectivity observed in the experiment.
Collapse
Affiliation(s)
- Cidan Lv
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Xiangxiang Meng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Min Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Yan Zhang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Chan Kyung Kim
- Department of Chemistry and Chemical Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Korea
| | - Zhishan Su
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| |
Collapse
|
61
|
Nagaraju S, Sathish K, Kashinath D. Applications of 3,5‐Dialkyl‐4‐nitroisoxazoles and Their Derivatives in Organic Synthesis
#. ChemistrySelect 2021. [DOI: 10.1002/slct.202101719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sakkani Nagaraju
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Kota Sathish
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Dhurke Kashinath
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| |
Collapse
|
62
|
Tian X, Zhang X, Hou X, Ren W, Li X, Zhao F, Tao H, Wang Y. Formal [4+1] Cyclization of
ortho
‐ or
para
‐Quinone Methides with 3‐Chlorooxindoles: Synthesis of 3,2′‐Tetrahydrofuryl Spirooxindoles. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100363] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiaochen Tian
- Molecular Synthesis Center & Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Xiaoli Zhang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Xiaohan Hou
- Molecular Synthesis Center & Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Weiwu Ren
- Molecular Synthesis Center & Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts Qingdao National Laboratory for Marine Science and Technology (QNLM) Qingdao 266237 P. R. China
| | - Xiaoyang Li
- Molecular Synthesis Center & Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Fei Zhao
- iHuman Institute ShanghaiTech University Ren Building 393 Middle Huaxia Rd, Pudong New District Shanghai 201210 P. R. China
| | - Houchao Tao
- iHuman Institute ShanghaiTech University Ren Building 393 Middle Huaxia Rd, Pudong New District Shanghai 201210 P. R. China
| | - Yang Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts Qingdao National Laboratory for Marine Science and Technology (QNLM) Qingdao 266237 P. R. China
| |
Collapse
|
63
|
Regio- and Stereoselective Synthesis of a New Series of Spirooxindole Pyrrolidine Grafted Thiochromene Scaffolds as Potential Anticancer Agents. Symmetry (Basel) 2021. [DOI: 10.3390/sym13081426] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A series of new spiro-heterocycles engrafted spirooxindole/pyrrolidine/thiochromene scaffolds was synthesized by the three-component 1,3-dipolar cycloaddition reactions in a fully controlled regio- and stereo-selective fashion. Condensation of several substituted isatin derivatives with L-proline generated the azomethine ylides which subsequently reacted with chalcones based thiochromene scaffold, and finally afforded the target spiro-compounds. This simple protocol furnished a structurally complex, biologically relevant spiro-heterocycles in good yields through a one-pot process. All synthesized chalcone-based thiochromene, along with the spirooxindole/pyrrolidine/thiochromene scaffolds, were tested for their anticancer activity against four cancer cell lines (PC3, HeLa, MCF-7, and MDA-MB231). Toxicity of these compounds was also evaluated against human fibroblast BJ cell line, and they appeared to be not cytotoxic. For the prostate cancer (PC3) cell line, the most active hybrid, among synthesized series, was compound (7f, IC50 = 8.7 ± 0.7 µM). The most potent spirooxindole/pyrrolidine/thiochromene hybrid against cervical (HeLa) cancer cells was compound (7k, IC50 = 8.4 ± 0.5 µM) having chlorine and p-trifluoromethyl substituents attached to phenyl rings. Finally, against the MCF-7 and MDA-MB231 breast cancer cell lines, compound (7d) was the most active member of this series (IC50 = 7.36 ± 0.37, and 9.44 ± 0.32 µM, respectively).
Collapse
|
64
|
Siva Sankara C, Namboothiri INN. Regio- and Stereoselective Synthesis of Dispiro-bisoxindoles via [3+2] Annulation Involving Nitroisatylidene as a Vinylogous Michael Donor. Org Lett 2021; 23:4618-4623. [PMID: 34038641 DOI: 10.1021/acs.orglett.1c01360] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A cascade [3+2] annulation, involving a γ-selective vinylogous Michael addition of nitroalkylideneoxindoles to various electron deficient alkenes followed by an intramolecular Michael addition, provides access to dispiro-bis-oxindoles and spiro-oxindoles. Up to four contiguous chiral centers, including two quaternary spirocenters, are generated in this high-yield regio- and diastereoselective transformation that also provides a convenient entry into conformationally constrained γ-amino acid derivatives.
Collapse
|
65
|
Toorbaf M, Moradi L. Preparation of GO/SiO 2/PEA as a new solid base catalyst for the green synthesis of some spirooxindole derivatives. RSC Adv 2021; 11:21840-21850. [PMID: 35478825 PMCID: PMC9034106 DOI: 10.1039/d1ra02850b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/07/2021] [Indexed: 01/20/2023] Open
Abstract
Efficient and green one pot multi component synthesis of some spirooxindole derivatives in the presence of graphene oxide functionalized with 2-(1-piperazinyl) ethylamine (GO/SiO2/PEA) as a solid base catalyst was studied. GO/SiO2/PEA has been obtained through a two step reaction and characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), thermo gravimetric analysis (TGA), Raman spectroscopy and X-ray diffraction (XRD). Green reaction conditions, short reaction times, reusable catalyst and a high to excellent yield of products are some of the advantageous of the presented method.
Collapse
Affiliation(s)
- Mahla Toorbaf
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan P.O. Box 8731753153 Kashan I. R. Iran
| | - Leila Moradi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan P.O. Box 8731753153 Kashan I. R. Iran
| |
Collapse
|
66
|
Lin C, Xing Q, Xie H. A formal intermolecular [4 + 1] cycloaddition reaction of 3-chlorooxindole and o-quinone methides: a facile synthesis of spirocyclic oxindole scaffolds. RSC Adv 2021; 11:18576-18579. [PMID: 35480909 PMCID: PMC9033455 DOI: 10.1039/d1ra01086g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/08/2021] [Indexed: 12/11/2022] Open
Abstract
Herein, we developed an efficient and straightforward method for the rapid synthesis of spirocyclic oxindole scaffolds via the [4 + 1] cyclization reaction of 3-chlorooxindole with o-quinone methides (o-QMs), which were generated under mild conditions. The products could be obtained in excellent yields with numerous types of 3-chlorooxindole. This methodology features mild reaction conditions, high atom-economy and broad substrate scope. Herein, we developed an efficient and straightforward method for the rapid synthesis of spirocyclic oxindole scaffolds via the [4 + 1] cyclization reaction of 3-chlorooxindole with o-quinone methides (o-QMs), which were generated under mild conditions.![]()
Collapse
Affiliation(s)
- Chao Lin
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica Shandong 264000 China
| | - Qi Xing
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica Shandong 264000 China
| | - Honglei Xie
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica Shandong 264000 China
| |
Collapse
|
67
|
Nasri S, Bayat M, Mirzaei F. Recent Strategies in the Synthesis of Spiroindole and Spirooxindole Scaffolds. Top Curr Chem (Cham) 2021; 379:25. [PMID: 34002298 DOI: 10.1007/s41061-021-00337-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/07/2021] [Indexed: 11/28/2022]
Abstract
Spiroindole and spirooxindole scaffolds are very important spiro-heterocyclic compounds in drug design processes. Significant attention has been directed at obtaining molecules based on spiroindole and spirooxindole derivatives that have bioactivity against cancer cells, microbes, and different types of disease affecting the human body. Due to their inherent three-dimensional nature and ability to project functionalities in all three dimensions, they have become biological targets. Considering reports on spiroindole and spirooxindole-containing scaffolds in the past decades, introducing novel synthetic procedures has been an active research field of organic chemistry for well over a century and will be useful in creating new therapeutic agents. This review summarizes the pharmacological significance of spiroindole and spirooxindole scaffolds and highlights the latest strategies for their synthesis, focusing particularly on the past 2 years with typical examples. The spiroindole and spirooxindoles in this review are divided by the type and ring size of the spirocycle that is fused to indole or oxindole. Summarizing these procedures will be very beneficial for discovering novel therapeutic candidate molecules.
Collapse
Affiliation(s)
- Shima Nasri
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran.
| | - Faezeh Mirzaei
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| |
Collapse
|
68
|
Kondo M, Matsuyama N, Aye TZ, Mattan I, Sato T, Makita Y, Ishibashi M, Arai MA, Takizawa S, Sasai H. Practical Stereoselective Synthesis of C3‐Spirooxindole‐ and C2‐Spiropseudoindoxyl‐Pyrrolidines
via
Organocatalyzed Pictet‐Spengler Reaction/Oxidative Rearrangement Sequence. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Masaru Kondo
- The Institute of Scientific and Industrial Research (ISIR) Osaka University Mihogaoka, Ibaraki-shi Osaka 567-0047 Japan
| | - Naoki Matsuyama
- The Institute of Scientific and Industrial Research (ISIR) Osaka University Mihogaoka, Ibaraki-shi Osaka 567-0047 Japan
| | - Tin Z. Aye
- The Institute of Scientific and Industrial Research (ISIR) Osaka University Mihogaoka, Ibaraki-shi Osaka 567-0047 Japan
| | - Irshad Mattan
- The Institute of Scientific and Industrial Research (ISIR) Osaka University Mihogaoka, Ibaraki-shi Osaka 567-0047 Japan
| | - Tomoyuki Sato
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Yoshinori Makita
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
- Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama Kanagawa 223–8522 Japan
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Midori A. Arai
- Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama Kanagawa 223–8522 Japan
| | - Shinobu Takizawa
- The Institute of Scientific and Industrial Research (ISIR) Osaka University Mihogaoka, Ibaraki-shi Osaka 567-0047 Japan
- Artificial Intelligence Research Center, ISIR Osaka University
| | - Hiroaki Sasai
- The Institute of Scientific and Industrial Research (ISIR) Osaka University Mihogaoka, Ibaraki-shi Osaka 567-0047 Japan
- Artificial Intelligence Research Center, ISIR Osaka University
| |
Collapse
|
69
|
Barman R, Bora PK, Saikia J, Kemprai P, Saikia SP, Haldar S, Banik D. Nutmegs and wild nutmegs: An update on ethnomedicines, phytochemicals, pharmacology, and toxicity of the Myristicaceae species. Phytother Res 2021; 35:4632-4659. [PMID: 33987899 DOI: 10.1002/ptr.7098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 03/06/2021] [Accepted: 03/09/2021] [Indexed: 11/09/2022]
Abstract
Prized medicinal spice true nutmeg is obtained from Myristica fragrans Houtt. Rest species of the family Myristicaceae are known as wild nutmegs. Nutmegs and wild nutmegs are a rich reservoir of bioactive molecules and used in traditional medicines of Europe, Asia, Africa, America against madness, convulsion, cancer, skin infection, malaria, diarrhea, rheumatism, asthma, cough, cold, as stimulant, tonics, and psychotomimetic agents. Nutmegs are cultivated around the tropics for high-value commercial spice, used in global cuisine. A thorough literature survey of peer-reviewed publications, scientific online databases, authentic webpages, and regulatory guidelines found major phytochemicals namely, terpenes, fatty acids, phenylpropanoids, alkanes, lignans, flavonoids, coumarins, and indole alkaloids. Scientific names, synonyms were verified with www.theplantlist.org. Pharmacological evaluation of extracts and isolated biomarkers showed cholinesterase inhibitory, anxiolytic, neuroprotective, anti-inflammatory, immunomodulatory, antinociceptive, anticancer, antimicrobial, antiprotozoal, antidiabetic, antidiarrhoeal activities, and toxicity through in-vitro, in-vivo studies. Human clinical trials were very few. Most of the pharmacological studies were not conducted as per current guidelines of natural products to ensure repeatability, safety, and translational use in human therapeutics. Rigorous pharmacological evaluation and randomized double-blind clinical trials are recommended to analyze the efficacy and therapeutic potential of nutmeg and wild nutmegs in anxiety, Alzheimer's disease, autism, schizophrenia, stroke, cancer, and others.
Collapse
Affiliation(s)
- Rubi Barman
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Pranjit Kumar Bora
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Jadumoni Saikia
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India
| | - Phirose Kemprai
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Siddhartha Proteem Saikia
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Saikat Haldar
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Dipanwita Banik
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| |
Collapse
|
70
|
Laviós A, Sanz‐Marco A, Vila C, Blay G, Pedro JR. Asymmetric Organocatalytic Synthesis of
aza
‐Spirocyclic Compounds from Isothiocyanates and Isocyanides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100232] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Adrián Laviós
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Amparo Sanz‐Marco
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - José R. Pedro
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| |
Collapse
|
71
|
Samikannu R, Sethuraman S, Akula N, Radhakrishnan V, Kamisetti S, Banu S, Vetrichelvan M, Gupta A, Li J, Rampulla R, Mathur A. Solvent-specific, DAST-mediated intramolecular Friedel-Crafts reaction: access to dibenzoxepine-fused spirooxindoles. Org Biomol Chem 2021; 19:1760-1768. [PMID: 33538747 DOI: 10.1039/d0ob02461a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A facile, DAST-mediated intramolecular cyclization of 3-hydroxy-3-(2-((3-methoxybenzyl)oxy)phenyl)indolin-2-one derivatives for the synthesis of spirooxindoles fused with dibenzoxepine moieties is described. The success of this reaction is highly dependent on the choice of solvent (promoted by DCM and 1,2-DCE) and the electronic nature of the pendant aromatic ring, which is favored by the presence of electron-donating substituents. The reaction is believed to proceed through an intramolecular Friedel-Crafts-type reaction. Various dibenzoxepine-fused spirooxindoles were successfully synthesized in up to 98% yield. This methodology provides libraries of structurally diverse and medicinally important small molecules that could aid in the search for new bioactive molecules.
Collapse
Affiliation(s)
- Ramesh Samikannu
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Sankaranarayanan Sethuraman
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Nagaraja Akula
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Vignesh Radhakrishnan
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Srinivasarao Kamisetti
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Shabana Banu
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Muthalagu Vetrichelvan
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Anuradha Gupta
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Jianqing Li
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, 100 Binney St., Cambridge, MA 02142, USA
| | - Richard Rampulla
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, P.O. Box 5400, Princeton, New Jersey 08543-4000, USA
| | - Arvind Mathur
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India. and Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, P.O. Box 5400, Princeton, New Jersey 08543-4000, USA
| |
Collapse
|
72
|
Brandão P, Marques CS, Carreiro EP, Pineiro M, Burke AJ. Engaging Isatins in Multicomponent Reactions (MCRs) - Easy Access to Structural Diversity. CHEM REC 2021; 21:924-1037. [PMID: 33599390 DOI: 10.1002/tcr.202000167] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/25/2021] [Indexed: 12/15/2022]
Abstract
Multicomponent reactions (MCRs) are a valuable tool in diversity-oriented synthesis. Its application to privileged structures is gaining relevance in the fields of organic and medicinal chemistry. Isatin, due to its unique reactivity, can undergo different MCRs, affording multiple interesting scaffolds, namely oxindole-derivatives (including spirooxindoles, bis-oxindoles and 3,3-disubstituted oxindoles) and even, under certain conditions, ring-opening reactions occur that leads to other heterocyclic compounds. Over the past few years, new methodologies have been described for the application of this important and easily available starting material in MCRs. In this review, we explore these novelties, displaying them according to the structure of the final products obtained.
Collapse
Affiliation(s)
- Pedro Brandão
- University of Coimbra, CQC and Department of Chemistry, 3004-535, Coimbra, Portugal.,LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| | - Carolina S Marques
- LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| | - Elisabete P Carreiro
- LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| | - M Pineiro
- University of Coimbra, CQC and Department of Chemistry, 3004-535, Coimbra, Portugal
| | - Anthony J Burke
- LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal.,University of Evora, Department of Chemistry, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| |
Collapse
|
73
|
Highly efficient and green synthesis of spiro[indoline-3,9′-xanthene]trione and spiro[chromene-4,3′-indoline]-3-carbonitrile derivatives in water catalyzed by graphene oxide-supported dicationic ionic liquid. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04405-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
74
|
Wu Y, Cui B, Long Y, Han W, Wan N, Yuan W, Chen Y. Chiral Phosphoric Acid Catalyzed (4+1) Annulation of 3‐Diazooxindoles/4‐Diazooxisoquinolines with
para
‐Quinone Methides to Access Chiral Spiro[dihydrobenzofuran‐2,3′‐oxindoles/2,4′‐oxisoquinolines]. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001309] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- You‐Cai Wu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi 563000 People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University Zunyi 563000 People's Republic of China
| | - Bao‐Dong Cui
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi 563000 People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University Zunyi 563000 People's Republic of China
| | - Yan Long
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi 563000 People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University Zunyi 563000 People's Republic of China
| | - Wen‐Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi 563000 People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University Zunyi 563000 People's Republic of China
| | - Nan‐Wei Wan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi 563000 People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University Zunyi 563000 People's Republic of China
| | - Wei‐Cheng Yuan
- National Engineering Research Center of Chiral Drugs Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 People's Republic of China
| | - Yong‐Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi 563000 People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University Zunyi 563000 People's Republic of China
| |
Collapse
|
75
|
Kustosz S, Niesobski P, Müller TJJ. Alkynylation‐Desilylation‐Alkynylation‐Cycloisomerization (ADAC) Three‐Component Synthesis of 2,2′‐Biindolyls – Concise Synthesis of Tjipanazole I. ChemCatChem 2021. [DOI: 10.1002/cctc.202001607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sebastian Kustosz
- Institut für Organische Chemie und Makromolekulare Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 D-40225 Düsseldorf Germany
| | - Patrik Niesobski
- Institut für Organische Chemie und Makromolekulare Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 D-40225 Düsseldorf Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 D-40225 Düsseldorf Germany
| |
Collapse
|
76
|
Di H, Liu Y, Ma Y, Yang X, Jin H, Zhang L. Recent Advances in Organocatalytic Asymmetric Synthesis of 3,4-Dihydropyran-2-ones and 3,4-Dihydropyridin-2-ones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202010039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
77
|
Deng Z, Feng J, Zhou F, Ouyang Y, Ma H, Zhou W, Zhang X, Cai Q. Copper( i)–catalyzed intramolecular asymmetric C-arylation of acyclic β-ester amides: enantioselective formation of chiral oxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00568e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A highly efficient intramolecular asymmetric C-arylation of acyclic β-ester amides is demonstrated.
Collapse
Affiliation(s)
- Zhuoji Deng
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Jiajie Feng
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Fengtao Zhou
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Yifan Ouyang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Haowen Ma
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Wei Zhou
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Qian Cai
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| |
Collapse
|
78
|
Yang F, Sun W, Meng H, Chen M, Chen C, Zhu B. Palladium-catalyzed synthesis of spirooxindoles and [3,4]-fused oxindoles from alkene-tethered carbamoyl chlorides. Org Chem Front 2021. [DOI: 10.1039/d0qo01166e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We disclosed an efficient Pd-catalyzed domino reaction for the synthesis of spirooxindoles and [3,4]-fused oxindoles from alkene-tethered carbamoyl chlorides.
Collapse
Affiliation(s)
- Fang Yang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Wan Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Haifang Meng
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Mengjia Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| |
Collapse
|
79
|
Wang Y, Cobo AA, Franz AK. Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00220a] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Catalytic asymmetric MCCRs for enantioselective synthesis of spirooxindoles by using chiral phosphoric acids, amines, bifunctional thiourea/squaramides and metal-based reagents as catalysts.
Collapse
Affiliation(s)
- Yongchao Wang
- Colleage of Vocational and Technical Education
- Yunnan Normal University
- Kunming 650092
- P. R. China
| | - Angel A. Cobo
- Department of Chemistry
- University of California
- Davis
- USA
| | | |
Collapse
|
80
|
1,5-Diarylpent-4-ene-1,3-diones in the synthesis of spiro[(thia)pyrrolizidine-3,3'-oxindoles] and 1,3-diaryl-5-spiro[oxindole-3,3'-pyrrolizidin-2'-yl]-1H-pyrazoles. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02871-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
81
|
Abstract
This review summaries recent synthetic developments towards spirocyclic oxindoles and applications as valuable medicinal and synthetic targets.
Collapse
Affiliation(s)
- Alexander J. Boddy
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - James A. Bull
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| |
Collapse
|
82
|
Li NK, Sun BB, Chen JB, Yang HD, Wang BL, Yu JQ, Wang XW, Wang Z. Box-copper catalyzed asymmetric inverse-electron-demand oxa-hetero-Diels–Alder reaction for efficient synthesis of spiro pyranyl-oxindole derivatives. Org Chem Front 2021. [DOI: 10.1039/d0qo01407a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A chiral Box/Cu catalyzed asymmetric IEDDA reaction between isatin-derived β,γ-unsaturated α-ketoesters and electron-rich olefins was developed, which provided chiral spiro oxindole-pyrans in excellent yields with excellent stereoselectivities.
Collapse
Affiliation(s)
- Nai-Kai Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jun-Bo Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Hao-Di Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Bai-Lin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jie-Qiang Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| |
Collapse
|
83
|
Penjarla TR, Kundarapu M, Rangan K, Bhattacharya A. Iodine assisted synthesis of CF 3 appended spirodihydrofuryl/cyclopropyl oxindoles by changing the active methylene sources. Org Biomol Chem 2020; 18:9623-9631. [PMID: 33206105 DOI: 10.1039/d0ob01903h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper describes the synthesis of two distinct types of CF3-containing spirooxindoles by varying the active methylene sources. The reaction was carried out in DMSO, assisted by molecular iodine and Na2CO3via systematic application of Michael reaction and iodine mediated cyclisation. With 5-methyl-2,4-dihydro-3H-pyrazol-3-one as the methylene source, the final products obtained were spirodihydrofuropyrazolyl oxindoles, whereas 1H-indene-1,3(2H)-dione as the methylene source gave the final compounds spirocyclopropyl oxindoles. Modest to good yields were obtained for both the spiro systems.
Collapse
Affiliation(s)
- Thirupathi Reddy Penjarla
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad-500078, India.
| | | | | | | |
Collapse
|
84
|
The application of isatin-based multicomponent-reactions in the quest for new bioactive and druglike molecules. Eur J Med Chem 2020; 211:113102. [PMID: 33421712 DOI: 10.1016/j.ejmech.2020.113102] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/16/2022]
Abstract
Oxindole derivatives are known for their great interest in the field of Medicinal Chemistry, as they display vast biological activities. Recent efforts concerning the preparation of oxindole derivatives using isatin-based multicomponent reactions (MCRs) constitute a great advance in generating druglike libraries fast and with wide scaffold diversity. In this review, we address those recent developments, exploring the synthetic pathways and biological activities described for these compounds, namely antitumor, antibacterial, antifungal, antiparasitic, antiviral, antioxidant, anti-inflammatory and central nervous system (CNS) pathologies. To add new depth to this work, we used a well-established web-based free tool (SwissADME) to evaluate the most promising scaffolds in what concerns their druglike properties, namely by evaluating their compliance with some of the most valuable rules applied by medicinal chemists in both academia and industrial settings (Lipinski, Ghose, Veber, Egan, Muegge). The aim of this review is to endorse isatin-based MCRs as a valuable synthetic approach to attain new hit compounds bearing the oxindole privileged structure, while critically exploring these scaffolds' druglike properties.
Collapse
|
85
|
Agarwal M, Verma K, Kumar Tailor Y, Khandelwal S, Rushell E, Pathak S, Kumari Y, Awasthi K, Kumar M. Efficient and Sustainable Synthesis of Spiroannulated Hybrid Molecules with Privileged Substructures using Nanostructured Heterogeneous Catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202003752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Monu Agarwal
- Department of Chemistry University of Rajasthan Jaipur India
| | - Kanchan Verma
- Department of Chemistry University of Rajasthan Jaipur India
| | | | | | - Esha Rushell
- Department of Chemistry University of Rajasthan Jaipur India
| | - Sakshi Pathak
- Department of Chemistry University of Rajasthan Jaipur India
| | - Yogita Kumari
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Kamlendra Awasthi
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Mahendra Kumar
- Department of Chemistry University of Rajasthan Jaipur India
| |
Collapse
|
86
|
3-Nitro-2-phenyl-2-trifluoromethyl-2H-chromenes in reactions with azomethine ylides from isatins and (thia)proline: synthesis of spiro[chromeno(thia)pyrrolizidine-11,3'-oxindoles]. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02815-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
87
|
Lin Y, Hou X, Li B, Du D. Organocatalytic Remote Asymmetric Inverse‐Electron‐Demand Oxa‐Diels‐Alder Reaction of Allyl Ketones with Isatin‐Derived Unsaturated Keto Esters. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001242] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ye Lin
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Xi‐Qiang Hou
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Bing‐Yu Li
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Da‐Ming Du
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| |
Collapse
|
88
|
Mohamed AH, Alshammari MB, El-Sheref EM, Aly AA. Novel series of dihydroquinolindihydro-spiro[indoline-3,6’-[1,3]thiazine]-5′-carbonitrile derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
89
|
Qin N, Lu X, Liu Y, Qiao Y, Qu W, Feng F, Sun H. Recent research progress of Uncaria spp. based on alkaloids: phytochemistry, pharmacology and structural chemistry. Eur J Med Chem 2020; 210:112960. [PMID: 33148492 DOI: 10.1016/j.ejmech.2020.112960] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 02/06/2023]
Abstract
Medicinal plants are well-known in affording clinically useful agents, with rich medicinal values by combining with disease targets through various mechanisms. Plant secondary metabolites as lead compounds lay the foundation for the discovery and development of new drugs in disease treatment. Genus Uncaria from Rubiaceae family is a significant plant source of active alkaloids, with anti-hypertensive, sedative, anti-Alzheimer's disease, anti-drug addiction and anti-inflammatory effects. This review summarizes and discuss the research progress of Uncaria based on alkaloids in the past 15 years, mainly in the past 5 years, including biosynthesis, phytochemistry, pharmacology and structural chemistry. Among, focusing on representative compounds rhynchophylline and isorhynchophylline, the pharmacological activities surrounding the central nervous system and cardiovascular system are described in detail. On the basis of case studies, this article provides a brief overview of the synthesis and analogues of representative compounds types. In summary, this review provides an early basis for further searching for new targets and activities, discussing the mechanisms of pharmacological activity and studying the structure-activity relationships of active molecules.
Collapse
Affiliation(s)
- Nan Qin
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Xin Lu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yijun Liu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yuting Qiao
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Wei Qu
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Feng Feng
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Jiangsu Food and Pharmaceutical Science College, Huaian, 223003, People's Republic of China.
| | - Haopeng Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Jiangsu Food and Pharmaceutical Science College, Huaian, 223003, People's Republic of China.
| |
Collapse
|
90
|
Gui H, Meng Z, Xiao Z, Yang Z, Wei Y, Shi M. Stereo‐ and Regioselective Construction of Spirooxindoles Having Continuous Spiral Rings via Asymmetric [3+2] Cyclization of 3‐Isothiocyanato Oxindoles with Thioaurone Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001146] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hou‐Ze Gui
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
| | - Zhe Meng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
| | - Zhan‐Shuai Xiao
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
| | - Ze‐Ren Yang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Yin Wei
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| |
Collapse
|
91
|
Abstract
Kojic acid, one of the most widespread 3-hydroxypyran-4-one derivatives, displays
a wide range of biological activities and found application in food as well as cosmetics
industry. The synthesis of kojic acid derivatives has provoked great interest as an easily
available and biologically active precursor among organic and medicinal researchers. Multicomponent
reactions, involving three or more reactants in one-pot thereby resulting in a
structure with functional diversity are efficient methods for the promotion of green chemistry
in the context of modern drug discovery. They offer several advantages over conventional
stepwise protocols like simplicity, efficiency, selectivity, convergence and atom economy.
This review aims to highlight the versatility of kojic acid as an important synthon in multicomponent
reactions for the construction of various biologically relevant compounds such as pyrano[3,2‐
b]chromenediones, pyrano[3,2-b]pyrans, pyrano[2′,3′:5,6]pyrano[2,3‑b]pyridines, spiro[indoline-3,4’-pyrano[3,
2-b]pyrans, 2-substituted kojic acid conjugates, etc.
Collapse
Affiliation(s)
- Ankita Chaudhary
- Department of Chemistry, Maitreyi College, University of Delhi, New Delhi, India
| |
Collapse
|
92
|
Wang C, Zhao W, Wu X, Qu J, Chen Y. Palladium‐Catalyzed Regioselective Domino Spirocyclization of Carbamoyl Chlorides with Alkynes and Benzynes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000537] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chenchen Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Wenyu Zhao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Xianqing Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| |
Collapse
|
93
|
Izmest'ev AN, Gazieva GA, Karnoukhova VA, Kravchenko AN. Diastereodivergent synthesis of dispiroheterocyclic structures comprising pyrrolidinyloxindole and imidazothiazolotriazine moieties. Org Biomol Chem 2020; 18:6905-6911. [PMID: 32856678 DOI: 10.1039/d0ob01628d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Highly diastereoselective methods for the synthesis of two different diastereomers of polynuclear dispiroheterocyclic compounds with five chiral centers comprising pyrrolidinyloxindole and imidazothiazolotriazine moieties (dispiro[imidazo[4,5-e]thiazolo[2,3-c]-1,2,4-triazine-7,3'-pyrrolidine-2',3''-indoles]) have been developed on the basis of a dipolar cycloaddition of azomethine ylides to benzylidene derivatives of imidazothiazolotriazines and an alkali-induced rearrangement of the thiazolotriazine fragment. The different sequence of the cycloaddition and rearrangement stages allows us to perform the targeted synthesis of two diastereomerically pure products from the same starting compounds.
Collapse
Affiliation(s)
- Alexei N Izmest'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prosp., 47, Moscow 119991, Russian Federation.
| | | | | | | |
Collapse
|
94
|
Pawlowski R, Skorka P, Stodulski M. Radical‐Mediated Non‐Dearomative Strategies in Construction of Spiro Compounds. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000807] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- R. Pawlowski
- Institute of Organic Chemistry Polish Academy of Sciences Warsaw Poland
| | - P. Skorka
- Medical University of Warsaw Faculty of Pharmacy Warsaw Poland
| | - M. Stodulski
- Institute of Organic Chemistry Polish Academy of Sciences Warsaw Poland
| |
Collapse
|
95
|
Acetic acid catalysed solvent‐free synthesis of spiro‐isoxazolo[5,4‐
b
]pyridines/quinolines by mechano‐chemical grinding. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
96
|
Bogdanov AV, Voloshina AD, Sapunova AS, Kulik NV, Mironov VF. Effect of Structure of 1-Substituted Isatins on Direction of Their Reactions with Some Acetohydrazide Ammonium Derivatives. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220090029] [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]
|
97
|
He T, Peng L, Li S, Hu F, Xie C, Huang S, Jia S, Qin W, Yan H. Chiral Naphthyl-C2-Indole as Scaffold for Phosphine Organocatalysis: Application in Asymmetric Formal [4 + 2] Cycloaddition Reactions. Org Lett 2020; 22:6966-6971. [DOI: 10.1021/acs.orglett.0c02519] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tingting He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Shan Li
- Chongqing Academy of Metrology and Quality Inspection, Chongqing 401123, P. R. China
| | - Fangli Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Chuandong Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| |
Collapse
|
98
|
Abolhasani A, Heidari F, Abolhasani H. Development and characterization of chitosan nanoparticles containing an indanonic tricyclic spiroisoxazoline derivative using ion-gelation method: an in vitro study. Drug Dev Ind Pharm 2020; 46:1604-1612. [PMID: 32812474 DOI: 10.1080/03639045.2020.1811304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biodegradable nanoparticulate carriers are potentially applicable compounds in the administration of therapeutic agents and drug delivery. They have received much attention due to their biological characteristics such as biodegradability, biocompatibility, and bioadhesive. The objectives of this work are first, investigating the impact of two important parameters (i.e. chitosan or sodium tripolyphosphate (TPP) solution concentration and chitosan to TPP mass ratio) on the chitosan nanoparticles (CNPs) formation by ionic-gelation method and then, the synthesis and characterization of chitosan-based, biodegradable drug-loaded nanoparticles in the encapsulation of novel 4'-(4-(methylsulfonyl)phenyl)-3'-(3,4,5-trimethoxyphenyl)-4'H-spiro[indene-2,5'-isoxazol]-1(3H)-one (MTS) indanonic tricyclic spiroisoxazoline, which is a potent anticancer drug. The particle size, shape, zeta potential, drug loading capacity, in vitro release characteristics, and stability of the formulated drug-loaded nanoparticles of the different drug:carrier ratio has been studied. The results indicated that the particle size increased at the higher chitosan or TPP concentration while the mass ratio did not appear to be a significant parameter during the cross-linking process. The particle diameter and zeta potential of CNPs including MTS were approximately in the range of 256-350 nm and 24.08-38.70 mV, respectively. The entrapment efficiency steadily increased with increasing the concentration of the polymer in formulizations. Throughout 24 h, the in vitro release behavior was provided a sustained release from all the drug-loaded formulizations. The optimal formulization of CNPs based on drug content with a drug:carrier ratio of 1:2 did not change appreciably during 60-day storage at either 4 °C or the ambient temperature.
Collapse
Affiliation(s)
- Ahmad Abolhasani
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.,Department of Chemical Engineering, University of Qom, Qom, Iran
| | - Fatemeh Heidari
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.,Department of Anatomy, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Hoda Abolhasani
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.,Department of Physiology and Pharmacology, School of Medicine, Qom University of Medical Sciences, Qom, Iran.,Spiritual Health Research Center, Qom University of Medical Sciences, Qom, Iran
| |
Collapse
|
99
|
Chang MY, Chen KT, Chen HY. One-pot construction of dispirocyclohexanes via K 2CO 3-mediated desulfonylative Michael-Michael-aldol (2 + 2 + 2) annulation of sulfonyl 2-pyridyl flavanones and methylketones. Org Biomol Chem 2020; 18:6297-6311. [PMID: 32744268 DOI: 10.1039/d0ob01404d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
K2CO3-mediated one-pot tandem conversion from sulfonyl 2-pyridyl flavanones to dipyridyl dispirocyclohexanes with contiguous multiple stereogenic centers was accomplished in good yields via an intramolecular desulfonylative ring-contraction of sulfonyl 2-pyridyl flavanones followed by an intermolecular Michael-Michael-aldol (2 + 2 + 2) annulation of the resulting pyridyl aurone intermediate with methyl ketones under facile, open-vessel, inexpensive and environmentally friendly reaction conditions. A plausible mechanism is proposed and discussed herein. This protocol provides a highly effective ring-closure via three carbon-carbon (C-C) bond formation.
Collapse
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan. and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Kuan-Ting Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Han-Yu Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
100
|
Zhu Y, Zhang Q, Fang C, Zhang Y, Ma L, Liu Z, Zhai S, Peng J, Zhang L, Zhu W, Zhang C. Refactoring the Concise Biosynthetic Pathway of Cyanogramide Unveils Spirooxindole Formation Catalyzed by a P450 Enzyme. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yiguang Zhu
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 1119 Haibin Rd. Nansha District Guangzhou 511458 China
| | - Qingbo Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 1119 Haibin Rd. Nansha District Guangzhou 511458 China
| | - Chunyan Fang
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
| | - Yingli Zhang
- College of Life Sciences Hebei Normal University Shijiazhuang 050024 China
| | - Liang Ma
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 1119 Haibin Rd. Nansha District Guangzhou 511458 China
| | - Zhiwen Liu
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
| | - Shilan Zhai
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
| | - Jing Peng
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
| | - Liping Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 1119 Haibin Rd. Nansha District Guangzhou 511458 China
| | - Weiming Zhu
- Key Laboratory of Marine Drugs Chinese Ministry of Education School of Medicine and Pharmacy Ocean University of China Qingdao 266003 China
| | - Changsheng Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology Guangdong Key Laboratory of Marine Materia Medica Innovation Academy of South China Sea Ecology and Environmental Engineering South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road Guangzhou 510301 China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 1119 Haibin Rd. Nansha District Guangzhou 511458 China
| |
Collapse
|