Highly oxygenated cyclohexenes from the leaves of Uvaria grandiflora Roxb. ex Hornem and their cytotoxic and α-glucosidase inhibitory activities
Phytochemical investigation of the leaf extract of <i>Uvaria grandiflora</i> Roxb. ex Hornem led to the isolation and identification of two new highly oxygenated cyclohexenes, uvariagrandols A (<b>1</b>) and B (<b>2</b>), together with seven known compounds (<b>3</b>-<b>9</b>). Their structures were elucidated by spectroscopic methods as well as comparisons made from the literature. The (1<i>S</i>,2<i>S</i>,3<i>R</i>,6<i>S</i>) absolute configuration of uvariagrandols A and B was established by the comparison of the experimental and calculated electronic circular dichroism (ECD). (+)-Grandifloracin (<b>9</b>) displayed cytotoxicity against SW480 and K562 cell lines with IC<sub>50</sub> values of 154.9 and 60.9 μM, respectively. 6-Methoxyzeylenol (<b>5</b>) had <i>α</i>-glucosidase inhibitory activity with the IC<sub>50</sub> value of 34.1 μM.
Authors
- Passakorn Teerapongpisan
- Virayu Suthiphasilp (ORCID: https://orcid.org/0000-0002-9914-9037)
- Raymond J. Andersen (ORCID: https://orcid.org/0000-0002-7607-8213)
- Phunrawie Promnart (ORCID: https://orcid.org/0009-0005-7741-5567)
- Surat Laphookhieo (ORCID: https://orcid.org/0000-0002-4757-2781)
- Tharakorn Maneerat
- Sarawut Tontapha (ORCID: https://orcid.org/0000-0002-8648-2375)
- Pakit Kumboonma (ORCID: https://orcid.org/0000-0002-4726-5191)
- Narawadee Rujanapun (ORCID: https://orcid.org/0000-0001-9259-5459)
- Boonyanoot Chaiyosang
- Thidarat Duangyod (ORCID: https://orcid.org/0000-0002-7337-819X)
- Moses Egoh Betangah
- Rawiwan Charoensup (ORCID: https://orcid.org/0000-0001-6433-0293)
- Brian O. Patrick (ORCID: https://orcid.org/0000-0002-2921-8439)
Institutions
- Rajamangala University of Technology Isan (TH)
- University of British Columbia (CA)
- Khon Kaen University (TH)
- Thailand Graduate Institute of Science and Technology (TH)
- Mae Fah Luang University (TH)
- Walailak University (TH)
Publication Details
- Journal
- Heliyon
- Published
- 2024-12-18
- DOI
- https://doi.org/10.1016/j.heliyon.2024.e41326
- Primary Topic
- Traditional and Medicinal Uses of Annonaceae
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Mae Fah Luang University
- National Research Council of Thailand
- Thailand Science Research and Innovation