1
|
Nakajima Y, Tsuboi N, Katori K, Waili M, Nugroho AE, Takahashi K, Nishino H, Hirasawa Y, Kawasaki Y, Goda Y, Kaneda T, Morita H. Oxomollugin, an oxidized substance in mollugin, inhibited LPS-induced NF-κB activation via the suppressive effects on essential activation factors of TLR4 signaling. J Nat Med 2024; 78:568-575. [PMID: 38564154 DOI: 10.1007/s11418-024-01798-y] [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: 12/02/2023] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
Oxomollugin is a degraded product of mollugin and was found to be an active compound that inhibits LPS-induced NF-κB activation. In this study, we investigated the inhibitory activity of oxomollugin, focusing on TLR4 signaling pathway, resulting in NF-κB activation. Oxomollugin inhibited the LPS-induced association of essential factors for initial activation of TLR4 signaling, MyD88, IRAK4 and TRAF6. Furthermore, oxomollugin showed suppressive effects on LPS-induced modification of IRAK1, IRAK2 and TRAF6, LPS-induced association of TRAF6-TAK1/TAB2, and followed by IKKα/β phosphorylation, which critical in signal transduction leading to LPS-induced NF-κB activation. The consistent results suggested that oxomollugin inhibits LPS-induced NF-κB activation via the suppression against signal transduction in TLR4 signaling pathway.The activities of oxomollugin reported in this study provides a deeper understanding on biological activity of mollugin derivatives as anti-inflammatory compounds.
Collapse
Affiliation(s)
- Yuki Nakajima
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Naohide Tsuboi
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Kumiko Katori
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Maigunuer Waili
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Alfarius Eko Nugroho
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Kazunori Takahashi
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Hitomi Nishino
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yusuke Hirasawa
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yoko Kawasaki
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Yukihiro Goda
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Toshio Kaneda
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan.
| | - Hiroshi Morita
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan.
| |
Collapse
|
2
|
Wang R, Ma R, Feng K, Lu H, Zhao W, Jin H. Total Synthesis and Anti-Inflammatory Evaluation of Osajin, Scandenone and Analogues. Pharmaceuticals (Basel) 2024; 17:86. [PMID: 38256918 PMCID: PMC10819276 DOI: 10.3390/ph17010086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
In this study, the total synthesis of osajin, scandenone and their analogues have been accomplished. The key synthetic steps include aldol/intramolecular iodoetherification/elimination sequence reactions and a Suzuki coupling reaction to assemble the tricyclic core, chemoselective propargylation and Claisen rearrangement reactions to obtain natural compounds. In addition, we also designed and synthesized twenty-five natural product analogues. All synthetic compounds were screened for anti-inflammatory activity against tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Collectively, Compound 39e and 39d were considered as promising lead compounds for further development.
Collapse
Affiliation(s)
- Rui Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, College of Pharmacy, Nankai University, Tianjin 300350, China; (R.W.); (R.M.); (K.F.); (H.L.)
| | - Ran Ma
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, College of Pharmacy, Nankai University, Tianjin 300350, China; (R.W.); (R.M.); (K.F.); (H.L.)
- Tianjin International Joint Academy of Biomedicine, Tianjin 300457, China
| | - Ke Feng
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, College of Pharmacy, Nankai University, Tianjin 300350, China; (R.W.); (R.M.); (K.F.); (H.L.)
| | - Hongchen Lu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, College of Pharmacy, Nankai University, Tianjin 300350, China; (R.W.); (R.M.); (K.F.); (H.L.)
- Tianjin International Joint Academy of Biomedicine, Tianjin 300457, China
| | - Wei Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, College of Pharmacy, Nankai University, Tianjin 300350, China; (R.W.); (R.M.); (K.F.); (H.L.)
| | - Hongzhen Jin
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, College of Pharmacy, Nankai University, Tianjin 300350, China; (R.W.); (R.M.); (K.F.); (H.L.)
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao 266071, China
| |
Collapse
|
3
|
Kise N, Yamamoto S, Sakurai T. Electroreductive Coupling of Phthalic Anhydrides with α,β-Unsaturated Carbonyl Compounds: Synthesis of 1,4-Dihydroxynaphthalenes. J Org Chem 2020; 85:13973-13982. [PMID: 33054211 DOI: 10.1021/acs.joc.0c02000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electroreductive coupling of phthalic anhydrides with α,β-unsaturated carbonyl compounds in the presence of TMSCl and subsequent treatment with 1 M HCl gave 1,4-dihydroxynaphthalenes and 2-methyl-2,3-dihydronaphthalene-1,4-diones.
Collapse
Affiliation(s)
- Naoki Kise
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101, Koyama-cho, Minami, Tottori 680-8552, Japan.,Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho, Minami, Tottori 680-8552, Japan
| | - Shota Yamamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101, Koyama-cho, Minami, Tottori 680-8552, Japan
| | - Toshihiko Sakurai
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101, Koyama-cho, Minami, Tottori 680-8552, Japan.,Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho, Minami, Tottori 680-8552, Japan
| |
Collapse
|
4
|
Bulman Page PC, Almutairi SM, Chan Y, Stephenson GR, Gama Y, Goodyear RL, Douteau A, Allin SM, Jones GA. Asymmetric Oxidation of Enol Derivatives to α-Alkoxy Carbonyls Using Iminium Salt Catalysts: A Synthetic and Computational Study. J Org Chem 2019; 84:544-559. [PMID: 30548068 DOI: 10.1021/acs.joc.8b02354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report herein the first examples of asymmetric oxidation of enol ether and ester substrates using iminium salt organocatalysis, affording moderate to excellent enantioselectivities of up to 98% ee for tetralone-derived substrates in the α-hydroxyketone products. A comprehensive density functional theory study was undertaken to interpret the competing diastereoisomeric transition states in this example in order to identify the origins of enantioselectivity. The calculations, performed at the B3LYP/6-31G(D) level of theory, gave good agreement with the experimental results, in terms of the magnitude of the effects under the specified reaction conditions, and in terms of the preferential formation of the ( R)-enantiomer. Just one of the 30 characterized transition states dominates the enantioselectivity, which is attributed to the adoption of an orientation relative to stereochemical features of the chiral controlling element that combines a CH-π interaction between a CH2 group in the substrate and one of the aromatic rings of the biaryl section of the chiral auxiliary with a good alignment of the acetoxy group with the other biaryl ring, and places the smallest substituent on the alkene (a hydrogen atom) in the most sterically hindered position.
Collapse
Affiliation(s)
- Philip C Bulman Page
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Saud M Almutairi
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Yohan Chan
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - G Richard Stephenson
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Yannick Gama
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Ross L Goodyear
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Alice Douteau
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Steven M Allin
- Department of Chemistry and Forensics , Nottingham Trent University , Clifton , Nottingham NG11 8NS , U.K
| | - Garth A Jones
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| |
Collapse
|
5
|
A New Mn–Salen Micellar Nanoreactor for Enantioselective Epoxidation of Alkenes in Water. Catalysts 2018. [DOI: 10.3390/catal8040129] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
|