1
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Savekar AT, Gaikwad RA, Waghmode SB. Metal-Free Regioselective Oxa-Michael Approach to Access Spirooxindole-Fused Tetrahydrofuran/Tetrahydropyran through [3 + 2]/ [4 + 2] Spirocyclization of Methyleneindolinones with Haloalcohols. J Org Chem 2024; 89:9389-9404. [PMID: 38913823 DOI: 10.1021/acs.joc.4c00659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
An efficient one-pot metal-free, base-catalyzed method has been developed for the regioselective [3 + 2]/[4 + 2] annulation reactions of electrophilic methyleneindolinones with haloalcohols to furnish spirooxindole derivatives under mild reaction conditions. This reaction afforded the corresponding products with two contiguous stereocenters including a quaternary center in good to excellent yield (up to 95%) with moderate to good diastereoselectivities (up to 12.5:1 dr) with complete regioselectivity.
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Affiliation(s)
- Amol T Savekar
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Ganeshkhind, Pune 411007, India
| | - Ramesh A Gaikwad
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Ganeshkhind, Pune 411007, India
| | - Suresh B Waghmode
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Ganeshkhind, Pune 411007, India
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2
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Singh C, Sharma P, Ahmed M, Kumar D, Sharma YB, Samanta J, Ahmed Z, Shukla SK, Hazra A, Bharitkar YP. Semisynthesis of Novel Dispiro-pyrrolizidino/thiopyrrolizidino-oxindolo/indanedione Natural Product Hybrids of Parthenin Followed by Their Cytotoxicity Evaluation. ACS OMEGA 2023; 8:35283-35294. [PMID: 37779957 PMCID: PMC10536096 DOI: 10.1021/acsomega.3c05020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/05/2023] [Indexed: 10/03/2023]
Abstract
Natural products possess unique and broader intricacies in the chemical space and have been essential for drug discovery. The crucial factor for drug discovery success is not the size of the library but rather its structural diversity. Although reports on the number of new structurally diverse natural products (NPs) have declined recently, researchers follow the next logical step: synthesizing natural product hybrids and their analogues using the most potent tool, diversity-oriented synthesis (DOS). Here, we use weed Parthenium hysterophorus as a source of parthenin for synthesis of novel dispiro-pyrrolizidino/thiopyrrolizidino-oxindolo/indanedione natural product hybrids of parthenin via chemo-, regio-, and stereoselective azomethine ylide cycloaddition. All synthesized compounds were characterized through a detailed analysis of one-dimensional (1D) and two-dimensional (2D) NMR and HRMS data, and the stereochemistries of the compounds were confirmed by X-ray diffraction analysis. All compounds were evaluated for their cytotoxicity against four cell lines (HCT-116, A549, Mia-Paca-2, and MCF-7), and compound 6 inhibited the HCT-116 cells with an IC50 of 5.0 ± 0.08 μM.
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Affiliation(s)
- Chetan
Paul Singh
- CSIR-Indian
Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka Sharma
- National
Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala
Main Road, Kolkata 700054, India
| | - Manzoor Ahmed
- CSIR-Indian
Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Diljeet Kumar
- CSIR-Indian
Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Yogesh Brijwashi Sharma
- National
Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala
Main Road, Kolkata 700054, India
| | - Jayanta Samanta
- Department
of Chemistry, SRM Institute of Science and
Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Zabeer Ahmed
- CSIR-Indian
Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sanket Kumar Shukla
- CSIR-Indian
Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Abhijit Hazra
- National
Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala
Main Road, Kolkata 700054, India
| | - Yogesh P. Bharitkar
- CSIR-Indian
Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Synthesis and anti-influenza virus activity evaluation of novel andrographolide derivatives. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02959-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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4
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Shukla K, Khushboo, Mahto P, Singh VK. Enantioselective synthesis of tetrahydrofuran spirooxindoles via domino oxa-Michael/Michael addition reaction using a bifunctional squaramide catalyst. Org Biomol Chem 2022; 20:4155-4160. [PMID: 35521781 DOI: 10.1039/d2ob00633b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective approach for the synthesis of tetrahydrofuran spirooxindoles via domino oxa-Michael/Michael addition reaction of γ-hydroxyenones to isatylidene malononitriles, using a cinchona derived bifunctional squaramide catalyst has been developed. The methodology is the first success of enantioselective oxa-Michael addition to isatylidene malononitriles. The spiro products were obtained in excellent yields with moderate to good enantio- and diastereoselectivities. Scale-up of the reaction and synthetic transformation of the spiro product into structurally complex molecules have been performed.
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Affiliation(s)
- Khyati Shukla
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, India.
| | - Khushboo
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, India.
| | - Pratibha Mahto
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, India.
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, India.
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Liu J, Flegel J, Otte F, Pahl A, Sievers S, Strohmann C, Waldmann H. Combination of Pseudo-Natural Product Design and Formal Natural Product Ring Distortion Yields Stereochemically and Biologically Diverse Pseudo-Sesquiterpenoid Alkaloids. Angew Chem Int Ed Engl 2021; 60:21384-21395. [PMID: 34297473 PMCID: PMC8518946 DOI: 10.1002/anie.202106654] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Indexed: 12/28/2022]
Abstract
We describe the synthesis and biological evaluation of a new natural product-inspired compound class obtained by combining the conceptually complementary pseudo-natural product (pseudo-NP) design strategy and a formal adaptation of the complexity-to-diversity ring distortion approach. Fragment-sized α-methylene-sesquiterpene lactones, whose scaffolds can formally be viewed as related to each other or are obtained by ring distortion, were combined with alkaloid-derived pyrrolidine fragments by means of highly selective stereocomplementary 1,3-dipolar cycloaddition reactions. The resulting pseudo-sesquiterpenoid alkaloids were found to be both chemically and biologically diverse, and their biological performance distinctly depends on both the structure of the sesquiterpene lactone-derived scaffolds and the stereochemistry of the pyrrolidine fragment. Biological investigation of the compound collection led to the discovery of a novel chemotype inhibiting Hedgehog-dependent osteoblast differentiation.
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Affiliation(s)
- Jie Liu
- Max Planck Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Technical University DortmundFaculty of ChemistryChemical BiologyOtto-Hahn-Strasse 644221DortmundGermany
| | - Jana Flegel
- Max Planck Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Technical University DortmundFaculty of ChemistryChemical BiologyOtto-Hahn-Strasse 644221DortmundGermany
| | - Felix Otte
- Technical University DortmundFaculty of ChemistryInorganic ChemistryOtto-Hahn-Strasse 644221DortmundGermany
| | - Axel Pahl
- Max Planck Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Compound Management and Screening CenterDortmundGermany
| | - Sonja Sievers
- Max Planck Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Compound Management and Screening CenterDortmundGermany
| | - Carsten Strohmann
- Technical University DortmundFaculty of ChemistryInorganic ChemistryOtto-Hahn-Strasse 644221DortmundGermany
| | - Herbert Waldmann
- Max Planck Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Technical University DortmundFaculty of ChemistryChemical BiologyOtto-Hahn-Strasse 644221DortmundGermany
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6
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Liu J, Flegel J, Otte F, Pahl A, Sievers S, Strohmann C, Waldmann H. Combination of Pseudo‐Natural Product Design and Formal Natural Product Ring Distortion Yields Stereochemically and Biologically Diverse Pseudo‐Sesquiterpenoid Alkaloids. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jie Liu
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Jana Flegel
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Felix Otte
- Technical University Dortmund Faculty of Chemistry Inorganic Chemistry Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Axel Pahl
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Compound Management and Screening Center Dortmund Germany
| | - Sonja Sievers
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Compound Management and Screening Center Dortmund Germany
| | - Carsten Strohmann
- Technical University Dortmund Faculty of Chemistry Inorganic Chemistry Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Herbert Waldmann
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
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7
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Chauhan G, Pathak DP, Ali F, Dubey P, Khasimbi S. In vitro Evaluation of Isatin derivatives as Potent Anti-Breast Cancer Agents against MCF-7, MDA MB 231, MDA-MB 435 and MDA-MB 468 Breast Cancers cell lines: A Review. Anticancer Agents Med Chem 2021; 22:1883-1896. [PMID: 34477529 DOI: 10.2174/1871520621666210903130152] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Breast cancer (BC) is one of the most frequent malignancy and most common reasons of impermanence in women. The backbone of therapy for BC is principally chemotherapy, but due to its non-specific nature between normal cells and cancer cells and severe side effects are the main barriers in its therapy. So, there is an intense requirement for the enlargement of more efficacious, more specific and safer anti-BC agents. OBJECTIVE Isatin (IST) is an endogenous molecule which is a principal class of heterocyclic compounds and exhibits a wide range of therapeutic activities which can be used as a starting material for the synthesis of several drug molecules. Many literatures were reported previously on different pharmacological activities of IST derivatives and particularly on anticancer activity but this review mainly focus on anti-BC activities of IST derivatives through MCF-7, MDA MB 231, MDA-MB 435 and MDA-MB 468 cell lines. Here in we mentioned, a total 33 IST derivatives (compound 24- 56) which shown good anti-BC activity. IST derived compounds are also available in market and are used for various cancer types like sunitinib for renal cell carcinoma (RCC) and Nintedanib used for the cryptogenic fibrosing alveolitis treatment but when evaluated for BC did not get much success. CONCLUSION This review mainly highlights anti-BC activities of various IST analogues using MCF-7, MDA MB 231, MDA-MB 435 and MDA-MB 468 cell lines, display the potent compound of the series and structure-activity relationships of compounds with molecular docking also. So, this study mainly shows the importance of IST as major sources for drug design and development of newer anti-BC drugs.
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Affiliation(s)
- Garima Chauhan
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli-Badarpur Road, Sector 3, Pushp Vihar, New Delhi, Delhi 110017, India
| | - Dharam Pal Pathak
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli-Badarpur Road, Sector 3, Pushp Vihar, New Delhi, Delhi 110017, India
| | - Faraat Ali
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli-Badarpur Road, Sector 3, Pushp Vihar, New Delhi, Delhi 110017, India
| | - Pragya Dubey
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli-Badarpur Road, Sector 3, Pushp Vihar, New Delhi, Delhi 110017, India
| | - Shaik Khasimbi
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli-Badarpur Road, Sector 3, Pushp Vihar, New Delhi, Delhi 110017, India
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8
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Zhang H, Li S, Si Y, Xu H. Andrographolide and its derivatives: Current achievements and future perspectives. Eur J Med Chem 2021; 224:113710. [PMID: 34315039 DOI: 10.1016/j.ejmech.2021.113710] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 12/22/2022]
Abstract
Natural product andrographolide isolated from the plant Andrographis paniculata shows a plethora of biological activities, including anti-tumor, anti-bacterial, anti-inflammation, anti-virus, anti-fibrosis, anti-obesity, immunomodulatory and hypoglycemic activities. Based on extensive chemical structural modifications, a series of andrographolide derivatives with improved bioavailability and druggability has been developed. Moreover, greater understanding of their mechanisms of action at the molecular and cellular level has been thoroughly investigated. In this review, we give an outlook for the therapeutical potential of andrographolide and its derivatives in diverse diseases and highlighted the drug design, pharmacokinetic and mechanistic studies for the past ten years, together with a brief overview of the pharmacological effects. Notably, we focused to provide a critical enlightenment of the area of andrographolide and its derivatives with the intent of indicating the future perspectives, challenges and limitations. We believe that this review paper will benefit drug discovery where andrographolide was used as a template, shed light on the identification of drug targets for andrographolide and its analogs, as well as increase our knowledge for using them for therapeutic application, including the treatment for various forms of cancers.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Shufeng Li
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Yongsheng Si
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Haiwei Xu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China.
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9
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Zhang X, Gao Y, Liu Y, Miao Z. Diastereoselective Synthesis of Tetrabenzohydrofuran Spirooxindoles via Diethyl Phosphite-Mediated Coupling of Isatins with o-Quinone Methides. J Org Chem 2021; 86:8630-8640. [PMID: 34162210 DOI: 10.1021/acs.joc.1c00336] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diethyl phosphite-initiated coupling of isatins with o-quinone methides (o-QMs) is reported. This reaction involves a cascade transformation initiated by base-promoted addition of phosphite to isatins, followed by [1,2]-phospha-Brook rearrangement. This generates α-phosphonyloxy enolates that are subsequently intercepted by o-QMs and finally intramolecular ring closure. This protocol was used to diastereoselectively synthesize a range of trans-tetrabenzohydrofuran spirooxindoles in moderate to good yields with moderate to excellent diastereoselectivities.
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Affiliation(s)
- Xiyuan Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Yanfeng Gao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Yitong Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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10
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Bora D, Kaushal A, Shankaraiah N. Anticancer potential of spirocompounds in medicinal chemistry: A pentennial expedition. Eur J Med Chem 2021; 215:113263. [PMID: 33601313 DOI: 10.1016/j.ejmech.2021.113263] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 01/11/2021] [Accepted: 02/01/2021] [Indexed: 12/30/2022]
Abstract
Spirocompounds constitute an important class of organic frameworks enveloping numerous pharmacological activities, among them, the promising anticancer potential of spirocompounds have enthused medicinal chemists to explore new spiro derivatives with significantly improved pharmacodynamic and pharmacokinetic profile along with their mechanism of action. The current review intends to provide a sketch of the anticancer activity of various spirocompounds like spirooxindole, spiroisoxazole, spiroindole etc, from the past five years unfolding various aspects of pharmacological activities and their structure-activity relationships (SARs). This literature analysis may provide future direction for the efficient design of novel spiromolecules with enhanced safety and efficacy.
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Affiliation(s)
- Darshana Bora
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India
| | - Anjali Kaushal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India.
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11
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Singh M, Ravichandiran V, Bharitkar YP, Hazra A. Natural Products Containing Olefinic Bond: Important Substrates for Semi-synthetic Modification Towards Value Addition. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200312125734] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
:
Semi-synthesis, the way of preparing novel bioactive molecules via modification
of compounds isolated from natural sources is very much useful nowadays in the drug discovery
process. The modification is based on the reaction of functional group(s) present in a
natural compound. Among the examples of functional group transformation, double bond
modification is also common in the literature. Several reactions like hydrogenation, cyclopropanation,
epoxidation, addition reaction (halogenations, hydroxylation), Michael addition,
Heck reaction, cycloaddition, dipolar cycloaddition, etc. are employed for this purpose.
In this review, we have tried to gather the reactions performed with several double bond
containing classes of natural products like diterpenes, xanthones, sesquiterpene exomethylene lactones, diaryl
heptanoids, steroidal lactones, triterpenoids, limonoids, and alkamides. Where available, the effects of transformations
on the biological activities of the molecules are also mentioned.
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Affiliation(s)
- Meenakshi Singh
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168 Maniktala Main Road, Kolkata - 700 054, India
| | - V. Ravichandiran
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168 Maniktala Main Road, Kolkata - 700 054, India
| | - Yogesh P. Bharitkar
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168 Maniktala Main Road, Kolkata - 700 054, India
| | - Abhijit Hazra
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168 Maniktala Main Road, Kolkata - 700 054, India
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12
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Guo YJ, Guo X, Kong DZ, Lu HJ, Liu LT, Hua YZ, Wang MC. Catalytic Asymmetric Synthesis of Tetrahydrofuran Spirooxindoles via a Dinuclear Zinc Catalyst. J Org Chem 2020; 85:4195-4206. [DOI: 10.1021/acs.joc.9b03378] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ya-Jun Guo
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Xin Guo
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - De-Zhi Kong
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Hui-Jie Lu
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Lan-Tao Liu
- School of Chemistry & Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, P. R. China
| | - Yuan-Zhao Hua
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
| | - Min-Can Wang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan 450000, P. R. China
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13
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Kandanur SGS, Tamang N, Golakoti NR, Nanduri S. Andrographolide: A natural product template for the generation of structurally and biologically diverse diterpenes. Eur J Med Chem 2019; 176:513-533. [DOI: 10.1016/j.ejmech.2019.05.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/22/2019] [Accepted: 05/06/2019] [Indexed: 01/11/2023]
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14
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Shahrestani N, Khosravi H, Jadidi K, Notash B, Naderi S. Organocatalytic synthesis of enantiopure spiro acenaphthyl-pyrrolizidine/pyrrolidines: justifying the regioselectivity based on a distortion/interaction model. Org Biomol Chem 2019; 17:7013-7024. [PMID: 31305857 DOI: 10.1039/c9ob01197h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient organocatalytic [3 + 2] reaction with Schreiner's thiourea organocatalyst for the synthesis of a small library of novel enantiopure stable spiroacenaphthyl-pyrrolidines/pyrrolizidines with high regio- and diastereoselectivity (up to 99%) is described for the first time. These chiral compounds were synthesized by a three-component 1,3-dipolar cycloaddition of (E)-1-(2-oxoacenaphthylen-1(2H)-ylidene) pyrrolidin-1-ium-2-ide as a dipolar and (S)-cinnamoyl/crotonoyl oxazolidinone as a dipolarophile. The absolute configuration of cycloadducts was confirmed by X-ray diffraction analysis. The origin of catalyst reactivity and regio- and stereoselectivity was investigated through DFT calculations. DFT calculations showed that the regioselectivity was controlled by the distortion (deformation) of reactants and Schreiner's thiourea acts as a LUMO-lowering catalyst.
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Affiliation(s)
- Naeimeh Shahrestani
- Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, G.C., Tehran 1983963113, Iran.
| | - Hormoz Khosravi
- Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, G.C., Tehran 1983963113, Iran.
| | - Khosrow Jadidi
- Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, G.C., Tehran 1983963113, Iran.
| | - Behrouz Notash
- Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, G.C., Tehran 1983963113, Iran.
| | - Soheila Naderi
- Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, G.C., Tehran 1983963113, Iran.
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15
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Singh M, Amrutha Krishnan AV, Mandal R, Samanta J, Ravichandiran V, Natarajan R, Bharitkar YP, Hazra A. Azomethine ylide cycloaddition: a versatile tool for preparing novel pyrrolizidino-spiro-oxindolo hybrids of the doubly conjugated alkamide piperine. Mol Divers 2019; 24:627-639. [PMID: 31183672 DOI: 10.1007/s11030-019-09969-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/04/2019] [Indexed: 11/26/2022]
Abstract
A facile, multicomponent (MCR) atom-economic synthesis of novel spiro-oxindolo pyrrolizidine adducts of piperine has been achieved via an intermolecular 1,3-dipolar azomethine ylide cycloaddition reaction. Either of the two conjugated double bonds in piperine takes part in the reaction to produce two regioisomeric adducts in racemic form. Acenaphthoquinone, ninhydrin and different isatin derivatives were reacted with proline and piperine to afford a never before reported library of 22 compounds. The structures of the products were determined by 1D/2D NMR, mass spectral analysis and confirmed by X-ray crystallography of selected products. Chiral HPLC separation was performed to measure the specific rotation and CD spectra of the enantiomers for two racemic compounds.
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Affiliation(s)
- Meenakshi Singh
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata, 700 054, India
| | - A V Amrutha Krishnan
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata, 700 054, India
| | - Ramkrishna Mandal
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata, 700 054, India
| | - Jayanta Samanta
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032, India
| | - V Ravichandiran
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata, 700 054, India
| | - Ramalingam Natarajan
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032, India
| | - Yogesh P Bharitkar
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata, 700 054, India.
| | - Abhijit Hazra
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata, 700 054, India.
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16
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Kandanur SGS, Kundu S, Cadena C, Juan HS, Bajaj A, Guzman JD, Nanduri S, Golakoti NR. Design, synthesis, and biological evaluation of new 12-substituted-14-deoxy-andrographolide derivatives as apoptosis inducers. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00718-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Periyasami G, Arumugam N, Rahaman M, Kumar RS, Manikandan M, Alfayez MA, Premnath D, Aldalbahi A. ACI/EG eutectic mixture mediated synthesis, characterization and in vitro osteoblast differentiation assessment of spiropyrrolo[1,2- b]isoquinoline analogues. RSC Adv 2018; 8:16303-16313. [PMID: 35542235 PMCID: PMC9080264 DOI: 10.1039/c8ra00646f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/13/2018] [Indexed: 12/17/2022] Open
Abstract
An eco-friendly acetylcholine iodide-ethylene glycol (ACI/EG) deep eutectic mixture mediated green protocol has been developed for the synthesis of hitherto unexplored multi-functionalized linear tricyclic spiropyrrolo[1,2-b]isoquinoline analogues. The effects of the synthesized compounds on the osteoblast differentiation of hBMSC-TERT cell lines were investigated and promising results were observed with significant IC50 values. In addition, molecular modeling simulations were also performed with the 3D structure of BMP-2 to reveal binding interactions and orientations of highly potent spiropyrrolo[1,2-b]isoquinoline analogues.
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Affiliation(s)
- Govindasami Periyasami
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
- Department of Organic Chemistry, University of Madras, Guindy Campus Chennai 600 025 India
| | - Natarajan Arumugam
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Mostafizur Rahaman
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Muthurangan Manikandan
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University Riyadh Saudi Arabia
| | - Musaad A Alfayez
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University Riyadh Saudi Arabia
| | - Dhanaraj Premnath
- Department of Oral Biology Dentistry Building-D325 Winnipeg Manitoba Canada
| | - Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
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18
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Singh M, Hazra A, Bharitkar YP, Kalia R, Sahoo A, Saha S, Ravichandiran V, Ghosh S, Mondal NB. Synthesis of diversely substituted bis-pyrrolizidino/ thiopyrrolizidino oxindolo/acenaphthyleno curcuminoids via sequential azomethine ylide cycloaddition. RSC Adv 2018; 8:18938-18951. [PMID: 35539652 PMCID: PMC9080697 DOI: 10.1039/c8ra02725k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/16/2018] [Indexed: 12/27/2022] Open
Abstract
Curcumin has been transformed to several diversely substituted bis-pyrrolizidino/thiopyrrolizidino oxindolo/acenaphthyleno curcuminoids via a sequential azomethine ylide cycloaddition reaction using isatins/acenaphthoquinone and proline/thioproline as the reagents. The products were separated via extensive chromatography and characterized by 1D/2D NMR and HRMS analysis. Curcumin has been transformed to several diversely substituted bis-pyrrolizidino/thiopyrrolizidino oxindolo/acenaphthyleno curcuminoids via a sequential azomethine ylide cycloaddition reaction.![]()
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Affiliation(s)
- Meenakshi Singh
- National Institute of Pharmaceutical Education and Research (NIPER)
- Kolkata – 700 032
- India
| | - Abhijit Hazra
- National Institute of Pharmaceutical Education and Research (NIPER)
- Kolkata – 700 032
- India
| | - Yogesh P. Bharitkar
- National Institute of Pharmaceutical Education and Research (NIPER)
- Kolkata – 700 032
- India
| | - Ritu Kalia
- National Institute of Pharmaceutical Education and Research (NIPER)
- Kolkata – 700 032
- India
| | - Ashutosh Sahoo
- Department of Organic and Medicinal Chemistry
- Indian Institute of Chemical Biology
- Council of Scientific and Industrial Research
- Kolkata – 700 032
- India
| | - Sneha Saha
- National Institute of Pharmaceutical Education and Research (NIPER)
- Kolkata – 700 032
- India
| | - V. Ravichandiran
- National Institute of Pharmaceutical Education and Research (NIPER)
- Kolkata – 700 032
- India
| | - Shekhar Ghosh
- Department of Organic and Medicinal Chemistry
- Indian Institute of Chemical Biology
- Council of Scientific and Industrial Research
- Kolkata – 700 032
- India
| | - Nirup B. Mondal
- Department of Organic and Medicinal Chemistry
- Indian Institute of Chemical Biology
- Council of Scientific and Industrial Research
- Kolkata – 700 032
- India
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19
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Kasemsuk T, Piyachaturawat P, Bunthawong R, Sirion U, Suksen K, Suksamrarn A, Saeeng R. One-pot three steps cascade synthesis of novel isoandrographolide analogues and their cytotoxic activity. Eur J Med Chem 2017; 138:952-963. [DOI: 10.1016/j.ejmech.2017.07.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 01/20/2023]
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20
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Liu Y, Liang RM, Ma QP, Xu K, Liang XY, Huang W, Sutton R, Ding J, O'Neil PM, Cheng CR. Synthesis of thioether andrographolide derivatives and their inhibitory effect against cancer cells. MEDCHEMCOMM 2017; 8:1268-1274. [PMID: 30108837 DOI: 10.1039/c7md00169j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 04/25/2017] [Indexed: 02/05/2023]
Abstract
A series of novel thioether andrographolide derivatives were synthesized by incorporating various aromatic (or heteroaromatic) substituents into C-12 or 14-OH. A total of 38 andrographolide derivatives were prepared and evaluated for their in vitro inhibitory activity against cancer cells. All the derivatives exhibited better activity against prostate cancer cells (PC-3) than the parent compound. Among these, compounds 6a, 8, 9, 17, 19, 31, and 32 demonstrated good activity. These compounds were further evaluated for their anticancer activities against other cancer cell lines including MCF-7, MDA-MB-231, and A549. Compounds 31 and 32 showed excellent activity against MCF-7 with an IC50 value of 0.7 and 0.6 μM, respectively. The absolute configuration of 15a was determined via single-crystal X-ray diffraction. The activity of 6a (12S), which was the precursor of 15a, was better than that of the diastereoisomer 6b (12R). Moreover, the preliminary structure-activity relationship has been summarized. The results obtained herein are very important for further optimization of andrographolide.
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Affiliation(s)
- Yi Liu
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601
| | - Ren-Ming Liang
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601
| | - Qing-Ping Ma
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601
| | - Kai Xu
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601
| | - Xin-Yong Liang
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601
| | - Wei Huang
- Department of Integrated Traditional Chinese and Western Medicine , Sichuan Provincial Pancreatitis Center , West China Hospital , Sichuan University , Chengdu , Sichuan , 643204 China.,Department of Molecular and Clinical Cancer Medicine , Institute of Translational Medicine , University of Liverpool , Prescot Street , Liverpool L69 8XP , UK
| | - Robert Sutton
- Department of Molecular and Clinical Cancer Medicine , Institute of Translational Medicine , University of Liverpool , Prescot Street , Liverpool L69 8XP , UK
| | - Jie Ding
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601
| | - Paul M O'Neil
- Department of Molecular and Clinical Cancer Medicine , Institute of Translational Medicine , University of Liverpool , Prescot Street , Liverpool L69 8XP , UK
| | - Chun-Ru Cheng
- School of Chemical Engineering , Institute of Pharmaceutical Engineering Technology and Application , Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education , Sichuan University of Science & Engineering , Xueyuan Street 180, Huixing Road , Zigong , Sichuan 643000 , People's Republic of China . ; ; Tel: +86 813 5505601.,Department of Molecular and Clinical Cancer Medicine , Institute of Translational Medicine , University of Liverpool , Prescot Street , Liverpool L69 8XP , UK.,Department of Chemistry , University of Liverpool , Crown Street , Liverpool L69 7ZD , UK
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21
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Kandanur SGS, Nanduri S, Golakoti NR. Synthesis and biological evaluation of new C-12(α/β)-(N-) sulfamoyl-phenylamino-14-deoxy-andrographolide derivatives as potent anti-cancer agents. Bioorg Med Chem Lett 2017; 27:2854-2862. [PMID: 28527822 DOI: 10.1016/j.bmcl.2017.04.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 02/08/2017] [Accepted: 04/11/2017] [Indexed: 01/04/2023]
Abstract
Andrographolide, the major diterpenoidal constituent of Andrographis paniculata (Acanthaceae) and its derivatives have been reported to possess plethora of biological properties including potent anti-cancer activity. In this work, synthesis and in-vitro anti-cancer evaluation of new C-12-substituted aryl amino 14-deoxy-andrographolide derivatives (III a-f) are reported. The substitutions include various sulfonamide moieties -SO2-NH-R1. The new derivatives (III a-e) exhibited improved cytotoxicity (GI50, TGI and LC50) compared to andrographolide (I) and the corresponding 3,14,19-O-triacetyl andrographolide (II) when evaluated against 60 NCI cell line panel. Compounds III c and III e are found to be non-toxic to normal human dermal fibroblasts (NHDF) cells compared to reference drug THZ-1.
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Affiliation(s)
- Sai Giridhar Sarma Kandanur
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam Campus, Prasanthi Nilayam 515134, Andhra Pradesh, India.
| | - Srinivas Nanduri
- Department of Process Chemistry, National Institute of Pharmaceutical Education and Research, Balanagar 500037, Hyderabad, Telangana, India.
| | - Nageswara Rao Golakoti
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam Campus, Prasanthi Nilayam 515134, Andhra Pradesh, India.
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22
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Possible anticancer agents: synthesis, pharmacological activity, and molecular modeling studies on some 5-N
-Substituted-2-N-(substituted benzenesulphonyl)-L(+)Glutamines. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1858-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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Rajkumar V, Babu SA, Padmavathi R. Regio- and diastereoselective construction of a new set of functionalized pyrrolidine, spiropyrrolidine and spiropyrrolizidine scaffolds appended with aryl- and heteroaryl moieties via the azomethine ylide cycloadditions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Synthesis and in vitro cytotoxicity of novel C-12 substituted-14-deoxy-andrographolide derivatives as potent anti-cancer agents. Bioorg Med Chem Lett 2015; 25:5781-6. [PMID: 26561364 DOI: 10.1016/j.bmcl.2015.10.053] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/11/2015] [Accepted: 10/17/2015] [Indexed: 01/11/2023]
Abstract
Andrographolide, the major labdane diterpenoid from Andrographis paniculata has been reported to be cytotoxic against various cancer cells in vitro. Our research efforts led to the discovery of novel 12-phenyl thio and 12-aryl amino-14-deoxy-andrographolide derivatives (III q and III r) with potent cytotoxic activity, 12-benzyl amino-14-deoxy-andrographolide analogues showing broad range of cytotoxic activity against most of the cell lines and 12-alkyl amino-14-deoxy-andrographolide derivatives being selective to few cell lines (PC-3 and HOP-92), when the selected analogues were evaluated against 60 human cancer cell line panel at National Cancer Institute (N.C.I.), USA. The SAR (structure activity relationship) studies demonstrated potent activity for the compounds containing the following functionalities at C-12: substituted aryl amino/phenyl thio>benzylamine>alkyl amine. The significant cytotoxic activity observed for compounds III q and III r suggest that these could serve as templates for further optimization.
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25
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Bharitkar YP, Das M, Kumari N, Kumari MP, Hazra A, Bhayye SS, Natarajan R, Shah S, Chatterjee S, Mondal NB. Synthesis of Bis-pyrrolizidine-Fused Dispiro-oxindole Analogues of Curcumin via One-Pot Azomethine Ylide Cycloaddition: Experimental and Computational Approach toward Regio- and Diastereoselection. Org Lett 2015; 17:4440-3. [PMID: 26331906 DOI: 10.1021/acs.orglett.5b02085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Curcumin has been transformed to racemic curcuminoids via an azomethine ylide cycloaddition reaction using isatin/acenaphthoquinone and proline as the reagents. The products were characterized by extensive 1D/2D NMR analysis and single-crystal X-ray crystallographic studies. The enantiomers of one racemic product were separated by HPLC on a Chiralcel OD-H column and were indeed confirmed by the CD spectra of the separated enantiomers.
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Affiliation(s)
- Yogesh P Bharitkar
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Mohua Das
- National Institute of Pharmaceutical Education and Research, Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Neha Kumari
- National Institute of Pharmaceutical Education and Research, Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - M Padma Kumari
- National Institute of Pharmaceutical Education and Research, Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Abhijit Hazra
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Sagar S Bhayye
- Department of Chemical Technology, University of Calcutta , Kolkata, West Bengal 700 009, India
| | - Ramalingam Natarajan
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Siddharth Shah
- National Institute of Pharmaceutical Education and Research, Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Sourav Chatterjee
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Nirup B Mondal
- Department of Organic and Medicinal Chemistry, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research , 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
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26
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Zhao HW, Chen XQ, Yang Z, Tian T, Li B, Meng W, Song XQ, Pang HL. Highly diastereoselective synthesis of imidazolidine-dispirooxindoles via three-component [3 + 2] cycloadditions of isatins, 2-(aminomethyl)pyridine and isatin-based imines. RSC Adv 2015. [DOI: 10.1039/c5ra21995g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the presence of Et3N, the [3 + 2] cycloaddition of isatins, 2-(aminomethyl)pyridine and isatin-based imines proceeded readily, and furnished novel imidazolidine-dispirooxindoles in up to 84% yield with up to >99 : 1 diastereoselectivity.
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Affiliation(s)
- Hong-Wu Zhao
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Xiao-Qin Chen
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Zhao Yang
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Ting Tian
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Bo Li
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Wei Meng
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Xiu-Qing Song
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Hai-Liang Pang
- College of Life Science and Bio-engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
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