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Nishiyama Y, Noda Y, Nakatani N, Shitan N, Sudo T, Kato A, Chalo Mutiso PB. Structure of constituents isolated from the bark of Cassipourea malosana and their cytotoxicity against a human ovarian cell line. J Nat Med 2018; 73:289-296. [PMID: 30353358 DOI: 10.1007/s11418-018-1254-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/05/2018] [Indexed: 11/25/2022]
Abstract
Three aromatic compounds, 2α,3α-epoxyflavan-5,7,4'-triol-(4β → 8)-afzelechin (1), 2β,3β-epoxyflavan-5,7,4'-triol-(4α → 8)-epiafzelechin (2), and methyl 4-ethoxy-2-hydroxy-6-propylbenzoate (3), as well as eight known compounds (4-11) were isolated from the bark of Cassipourea malosana (Rhizophoraceae). Their structures were determined on the basis of an analysis of spectroscopic data. The in vitro cytotoxic activities of these compounds against human ovarian cancer cell line TOV21G were evaluated. Most compounds showed little activity; however, the methyl derivatives of flavan dimers (1a and 2a) showed higher activity (IC50 value of 30.3 and 75.4 μM) than parent compounds 1 and 2.
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Affiliation(s)
- Yumi Nishiyama
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan.
| | - Yuki Noda
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
| | - Noriyoshi Nakatani
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
| | - Nobukazu Shitan
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
| | - Tamotsu Sudo
- Hyogo Cancer Center, Kitaoji-chou, Akashi, 673-8558, Hyogo, Japan
| | - Atsushi Kato
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
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Nguyen TT, Nguyen DH, Zhao BT, Le DD, Min BS, Kim YH, Woo MH. Triterpenoids and sterols from the grains of Echinochloa utilis Ohwi & Yabuno and their cytotoxic activity. Biomed Pharmacother 2017. [DOI: 10.1016/j.biopha.2017.06.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Drozdov FV, Timofeev VP, Misharin AI. A simple synthesis of 3β-acetoxy-20-oxomethylpregn-5-ene and 3β-acetoxy-20-hydroxymethylpregn-5-ene. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2006; 32:107-9. [PMID: 16523729 DOI: 10.1134/s1068162006010122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
3beta-Acetoxy-20-oxomethylpregn-5-ene and 3beta-acetoxy-20-hydroxymethylpregn-5-ene were synthesized from (22R,23R)-sitost-5-ene-3beta,22,23-triol in 66% overall yields.
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