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Soh D, Ernestine N, Tchana Satchet EM, Defokou UD, Schneider B, Giovanni V, Nyassé B. Antiproliferative activity of semisynthetic xylopic acid derivatives. Nat Prod Res 2021; 36:1288-1295. [PMID: 33487063 DOI: 10.1080/14786419.2021.1876045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two ent-kaurene diterpenoids, ent-15-β-acetyloxy-kaur-16-en-19-oic acid (xylopic acid) 1 and ent-7-oxo-kaur-16-en-19-oic acid 2 were isolated from the fruits of Xylopia aethiopica. Chemical manipulation of xylopic acid yielded ent-kaurane derivatives 3, 4, 5, and 6. Their structures were elucidated by spectroscopic analysis, including 1 D- and 2 D-NMR spectroscopies. The antiproliferative activities of compounds 1, 2, 3, 4, and 6 were tested on breast MCF7 and SkBr3, endometrial Ishikawa, ovarian BG-1, mesothelioma IST-MES1 and hepatocellular HepG2 human tumor cells, and on mammalian MRC-10 fibroblast cells. Ketone 2 showed significant antiproliferative activity against MFC7 human breast cancer cells (IC50 = 3 ± 1 µM) and A549 pulmonary adenocarcinoma (8 ± 1 µM), that was higher than the well-known anti-cancer agent cisplatin (IC50 = 19 ± 3 and 15 ± 4 µM, respectively).
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Affiliation(s)
- Désiré Soh
- Department of Chemistry, Higher Teacher Training College, University of Bamenda, Bambili, Cameroon.,TWAS Research Unit (TRU), The University of Bamenda, Bamenda, Cameroon.,Laboratory of Medicinal Chemistry & Pharmacognosy, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Nkwengoua Ernestine
- Laboratory of Medicinal Chemistry & Pharmacognosy, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Emmanuella Marthe Tchana Satchet
- Laboratory of Medicinal Chemistry & Pharmacognosy, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Ulrich Dzo Defokou
- Laboratory of Medicinal Chemistry & Pharmacognosy, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Vidari Giovanni
- Department of Chemistry, University of Pavia, Pavia, Italy.,Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Kurdistan Region-Iraq
| | - Barthélemy Nyassé
- Laboratory of Medicinal Chemistry & Pharmacognosy, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
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