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Ribeiro LAF, Dos Santos IBF, Ferraz CG, de Souza-Neta LC, Silva VR, Santos LDS, Bezerra DP, Soares MBP, Zambotti-Villela L, Colepicolo P, Ferreira AG, Araújo FM, Ribeiro PR. Bioactive compounds from Vellozia pyrantha A.A.Conc: A metabolomics and multivariate statistical analysis approach. Fitoterapia 2023; 171:105686. [PMID: 37748714 DOI: 10.1016/j.fitote.2023.105686] [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: 07/26/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 09/27/2023]
Abstract
The chemical composition of V. pyrantha resin (VpR) and fractions (VpFr1-7 and VpWS) were assessed by LC-MS and NMR. Twenty-eight metabolites were identified, including 16 diterpenoids, seven nor-diterpenoids, one fatty acid, one bis-diterpenoid, one steroid, one flavonoid, and one triterpenoid. The pharmacological potential of VpR, VpFr1-7, and isolated compounds was assessed by determining their antioxidant, antimicrobial, and cytotoxic activities. VpFr4 (IC50 = 205.48 ± 3.37 μg.mL-1) had the highest antioxidant activity, whereas VpFr6 (IC50 = 842.79 ± 10.23 μg.mL-1) had the lowest. The resin was only active against Staphylococcus aureus (MIC 62.5 μg.mL-1) and Salmonella choleraesius (MIC and MFC 500 μg.mL-1), but fractions were enriched with antibacterial compounds. V. pyrantha resin and fractions showed great cytotoxic activity against HCT116 (IC50 = 20.08 μg.mL-1), HepG2 (IC50 = 20.50 μg.mL-1), and B16-F10 (12.17 μg.mL-1) cell lines. Multivariate statistical analysis was used as a powerful tool to pinpoint possible metabolites responsible for the observed activities.
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Affiliation(s)
- Luiz A F Ribeiro
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química Aplicada (PGQA), Universidade do Estado da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
| | - Iago B F Dos Santos
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
| | - Caline G Ferraz
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química Aplicada (PGQA), Universidade do Estado da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
| | - Lourdes C de Souza-Neta
- Programa de Pós-Graduação em Química Aplicada (PGQA), Universidade do Estado da Bahia, Salvador, Brazil
| | | | | | - Daniel P Bezerra
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | | | | | - Pio Colepicolo
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Antonio G Ferreira
- Laboratório de Ressonância Magnética Nuclear, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Floricéa M Araújo
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
| | - Paulo R Ribeiro
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química Aplicada (PGQA), Universidade do Estado da Bahia, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil.
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dos Santos IB, Ribeiro LA, Araújo FM, Ribeiro PR. Cleistanthane diterpenoids from the resin of Vellozia pyrantha A.A.Conc and their chemotaxonomic significance. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2020.104216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Cai W, Huang S, Wu J, Song Z, Xin Z, Li J, Xue X. Synthesis of ent-Cleistanthane Diterpenoid Spruceanol: Construction of an Aromatic C Ring via Lewis Acid-Controlled Regioselective Diels-Alder Cycloaddition. J Org Chem 2020; 85:6709-6718. [PMID: 32340453 DOI: 10.1021/acs.joc.0c00713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first synthesis of ent-cleistanthane-type diterpenoid spruceanol with significant anticancer activity is described. A chiral pool approach was employed with a linear sequence of 13 steps beginning from readily available and inexpensive andrographolide. The approach features the construction of an aromatic ring with hydroxyl and methyl groups at C-12 and C-13 of the target compound, respectively, via Lewis acid-controlled regioselective Diels-Alder cycloaddition and the regioselective removal of the primary hydroxyl group of the Diels-Alder adduct.
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Affiliation(s)
- Wei Cai
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Sujie Huang
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Jiajia Wu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Zhiqiang Song
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Zhengyuan Xin
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Jiabin Li
- School of Science, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaowen Xue
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
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Pathipati SR, Eriksson L, Selander N. Stereoselective synthesis of bicyclo[3.n.1]alkenone frameworks by Lewis acid-catalysis. Chem Commun (Camb) 2017; 53:11353-11356. [DOI: 10.1039/c7cc06400d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An indium-catalysed α,α′-annulation of cyclic ketones and alkynyl enones, leading to bicyclo[3.n.1]alkenones, is presented.
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Affiliation(s)
- Stalin R. Pathipati
- Department of Organic Chemistry
- Stockholm University
- Arrhenius Laboratory
- Stockholm
- Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry
- Stockholm University
- Arrhenius Laboratory
- Stockholm
- Sweden
| | - Nicklas Selander
- Department of Organic Chemistry
- Stockholm University
- Arrhenius Laboratory
- Stockholm
- Sweden
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Maslovskaya LA, Savchenko AI, Gordon VA, Reddell PW, Pierce CJ, Parsons PG, Williams CM. Isolation and confirmation of the proposed cleistanthol biogentic link from Croton insularis. Org Lett 2011; 13:1032-5. [PMID: 21294576 DOI: 10.1021/ol103083m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The proposed cleistanthol biosynthetic intermediate en route to spruceanol, and other related family members, was isolated for the first time from Croton insularis, confirming the Jacobs-Reynolds hypothesis. Anticancer evaluation of the new isolates and their aerial oxidation products is also reported.
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Affiliation(s)
- Lidia A Maslovskaya
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland, Australia
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