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Rasapalli S, Sammeta VR, Murphy ZF, Golen JA, Agama K, Pommier Y, Savinov SN. Design and synthesis of C-aryl angular luotonins via a one-pot aza-Nazarov-Friedlander sequence and their Topo-I inhibition studies along with C-aryl vasicinones and luotonins. Bioorg Med Chem Lett 2021; 41:127998. [PMID: 33794318 PMCID: PMC8113096 DOI: 10.1016/j.bmcl.2021.127998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 12/24/2022]
Abstract
A facile one-pot synthesis of C-ring substituted angular luotonins has been realized via a methanesulfonic acid mediated aza-Nazarov-Friedlander condensation sequence on quinazolinonyl enones. Topoisomerase I (topo-I) inhibition studies revealed that the angular luotonin library (7a-7l) and their regioisomeric analogs (linear luotonins, 8a-8l) are weak negative modulators, compared to camptothecin. These results would fare well for the design of topo-I-inert luotonins for non-oncological applications such as anti-fungal and insecticide lead developments. Surprisingly, the tricyclic vasicinones (9h, 9i, and 9j) showed better topo-I inhibition compared to pentacyclic C-aryl luotonins providing a novel pharmacophore for further explorations.
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Affiliation(s)
- Sivappa Rasapalli
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA.
| | - Vamshikrishna Reddy Sammeta
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA
| | - Zachary F Murphy
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA
| | - James A Golen
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA
| | - Keli Agama
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892-4255, USA
| | - Yves Pommier
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892-4255, USA
| | - Sergey N Savinov
- Department of Biochemistry and Molecular Biology, UMass Amherst, Amherst, MA 01003, USA
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Bakthadoss M, Vinayagam V. Construction of hybrid polycyclic quinolinobenzo[a]phenazinone architectures using solid-state melt reaction (SSMR). Mol Divers 2020; 25:2447-2458. [PMID: 32367313 DOI: 10.1007/s11030-020-10090-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/15/2020] [Indexed: 11/30/2022]
Abstract
An efficient and versatile protocol for the synthesis of hybrid polycyclic quinolinobenzo[a]phenazinones has been developed under SSMR condition via intramolecular domino Knoevenagel-hetero-Diels-Alder reaction involving the generation of two new six membered fused rings and three contiguous stereogenic centers.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry, Pondicherry University, Pondicherry, 605 014, India.
| | - Varathan Vinayagam
- Department of Chemistry, Pondicherry University, Pondicherry, 605 014, India
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Rasapalli S, Sammeta VR, Murphy ZF, Huang Y, Boerth JA, Golen JA, Savinov SN. Synthesis of C-Ring-Substituted Vasicinones and Luotonins via Regioselective Aza-Nazarov Cyclization of Quinazolinonyl Enones. Org Lett 2019; 21:9824-9828. [PMID: 31800251 DOI: 10.1021/acs.orglett.9b03586] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile synthesis of C-ring substituted luotonins and vasicinones has been realized via a super-acid-mediated aza-Nazarov cyclization of quinazolinonyl enones. The regioselectivity of the cyclization is highly dependent on proton availability in the reaction medium.
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Affiliation(s)
- Sivappa Rasapalli
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Vamshikrishna Reddy Sammeta
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Zachary F Murphy
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Yanchang Huang
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Jeffrey A Boerth
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - James A Golen
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Sergey N Savinov
- Department of Biochemistry and Molecular Biology , University of Massachusetts Amherst , Amherst , Massachusetts 01003 , United States
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Vargas DF, Larghi EL, Kaufman TS. The 6π-azaelectrocyclization of azatrienes. Synthetic applications in natural products, bioactive heterocycles, and related fields. Nat Prod Rep 2019; 36:354-401. [PMID: 30090891 DOI: 10.1039/c8np00014j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2006 to 2018 The application of the 6π-azaelectrocyclization of azatrienes as a key strategy for the synthesis of natural products, their analogs and related bioactive or biomedically-relevant compounds (from 2006 to date) is comprehensively reviewed. Details about reaction optimization studies, relevant reaction mechanisms and conditions are also discussed.
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Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas - Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina.
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Gisbert P, Albert-Soriano M, Pastor IM. Effective and Sustainable Access to Quinolines and Acridines: A Heterogeneous Imidazolium Salt Mediates C-C and C-N Bond Formation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900880] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Patricia Gisbert
- Organic Chemistry Department and Instituto Síntesis Orgánica (ISO); University of Alicante; Apdo. 99 03080 Alicante Spain
| | - María Albert-Soriano
- Organic Chemistry Department and Instituto Síntesis Orgánica (ISO); University of Alicante; Apdo. 99 03080 Alicante Spain
| | - Isidro M. Pastor
- Organic Chemistry Department and Instituto Síntesis Orgánica (ISO); University of Alicante; Apdo. 99 03080 Alicante Spain
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Toyota M, Kagawa N, Nishimura K, Abe S. Concise Approach to Mono- and Disubstituted Luotonin A Analogs and Their Cytotoxicity Test. HETEROCYCLES 2018. [DOI: 10.3987/com-17-s(t)6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kwon SH, Seo HA, Cheon CH. Total Synthesis of Luotonin A and Rutaecarpine from an Aldimine via the Designed Cyclization. Org Lett 2016; 18:5280-5283. [DOI: 10.1021/acs.orglett.6b02597] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Se Hyun Kwon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Hong-Ahn Seo
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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Bakthadoss M, Kannan D. A novel synthesis of tetra and pentacyclic quinolinopyran tethered pyrazole/coumarin scaffolds via a solid state melt reaction. RSC Adv 2014. [DOI: 10.1039/c3ra46894a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Gupta G, Chaudhari G, Tomar P, Gaikwad Y, Azad R, Pandya G, Waghulde G, Patil K. Synthesis of bis(indolyl)methanes using molten N-butylpyridinium bromide. ACTA ACUST UNITED AC 2012. [DOI: 10.5155/eurjchem.3.4.475-479.709] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Vidyasagar N, Nanda R, Mangal R, Kathiravan MK. Perchloric Acid-Catalyzed Synthesis of 9-Aryl Xanthenes-9H-3,6-diol and 1,3,6,8-Tetraol in Water. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.578326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ghoshal A, Sarkar AR, Senthil kumaran R, Hegde S, Manickam G, Jayashankaran J. A facile stereoselective synthesis of julolidine hybrid analogs via domino knoevenagel intramolecular hetero Diels–Alder reaction. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.103] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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