Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities

Oxidative stress and its constant companion, inflammation, play a critical part in the pathogenesis of many acute and chronic illnesses. The discovery of new multi-targeted drug candidates with antioxidant and anti-inflammatory properties is deemed necessary. Thus, a series of novel xanthone derivat...

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Main Authors: Wong, Ka Woong, Teh, Soek Sin, Law, Kung Pui, Ismail, Intan Safinar, Sato, Kohei, Mase, Nobuyuki, Mah, Siau Hui
Format: Article
Published: Wiley 2022
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author Wong, Ka Woong
Teh, Soek Sin
Law, Kung Pui
Ismail, Intan Safinar
Sato, Kohei
Mase, Nobuyuki
Mah, Siau Hui
author_facet Wong, Ka Woong
Teh, Soek Sin
Law, Kung Pui
Ismail, Intan Safinar
Sato, Kohei
Mase, Nobuyuki
Mah, Siau Hui
author_sort Wong, Ka Woong
collection UPM
description Oxidative stress and its constant companion, inflammation, play a critical part in the pathogenesis of many acute and chronic illnesses. The discovery of new multi-targeted drug candidates with antioxidant and anti-inflammatory properties is deemed necessary. Thus, a series of novel xanthone derivatives with halogenated benzyl (4b-4d, 4f-4h) and methoxylated benzyl groups (4e) attached to the butoxy amine substituent were synthesized in this study. The synthesized xanthone derivatives exhibited stronger antioxidant activity against H2 O2 scavenging than the standard drug, α-tocopherol, but weaker towards DPPH scavenging and ferrous ion chelation. Besides that, 4b-4d, 4f-4h demonstrated good anti-inflammatory activities through NO production inhibition towards lipopolysaccharide (LPS)-induced RAW 264.7 cells and showed 2-4 times stronger effects than the standard drug, diclofenac sodium. Moreover, compound 4b with two brominated benzyl groups attached to the butoxy amine substituent suppressed the production of pro-inflammatory cytokines, TNF-α and IL-1β, significantly. Structure-activity relationship elucidated that the halogenated benzylamine substituent plays an important role in contributing the antioxidant and anti-inflammatory activities of xanthones. In summary, xanthone 4b was identified as a potential lead compound to be further developed into antioxidant and anti-inflammatory drugs. Thus, further studies on the related mechanisms of action of 4b are recommended.
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spelling upm.eprints-1034012023-06-12T04:05:13Z http://psasir.upm.edu.my/id/eprint/103401/ Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities Wong, Ka Woong Teh, Soek Sin Law, Kung Pui Ismail, Intan Safinar Sato, Kohei Mase, Nobuyuki Mah, Siau Hui Oxidative stress and its constant companion, inflammation, play a critical part in the pathogenesis of many acute and chronic illnesses. The discovery of new multi-targeted drug candidates with antioxidant and anti-inflammatory properties is deemed necessary. Thus, a series of novel xanthone derivatives with halogenated benzyl (4b-4d, 4f-4h) and methoxylated benzyl groups (4e) attached to the butoxy amine substituent were synthesized in this study. The synthesized xanthone derivatives exhibited stronger antioxidant activity against H2 O2 scavenging than the standard drug, α-tocopherol, but weaker towards DPPH scavenging and ferrous ion chelation. Besides that, 4b-4d, 4f-4h demonstrated good anti-inflammatory activities through NO production inhibition towards lipopolysaccharide (LPS)-induced RAW 264.7 cells and showed 2-4 times stronger effects than the standard drug, diclofenac sodium. Moreover, compound 4b with two brominated benzyl groups attached to the butoxy amine substituent suppressed the production of pro-inflammatory cytokines, TNF-α and IL-1β, significantly. Structure-activity relationship elucidated that the halogenated benzylamine substituent plays an important role in contributing the antioxidant and anti-inflammatory activities of xanthones. In summary, xanthone 4b was identified as a potential lead compound to be further developed into antioxidant and anti-inflammatory drugs. Thus, further studies on the related mechanisms of action of 4b are recommended. Wiley 2022 Article PeerReviewed Wong, Ka Woong and Teh, Soek Sin and Law, Kung Pui and Ismail, Intan Safinar and Sato, Kohei and Mase, Nobuyuki and Mah, Siau Hui (2022) Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities. Chemistry in Life Sciences, 356 (1). pp. 1-22. ISSN 0365-6233; ESSN: 1521-4184 https://onlinelibrary.wiley.com/doi/10.1002/ardp.202200418 10.1002/ardp.202200418
spellingShingle Wong, Ka Woong
Teh, Soek Sin
Law, Kung Pui
Ismail, Intan Safinar
Sato, Kohei
Mase, Nobuyuki
Mah, Siau Hui
Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities
title Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities
title_full Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities
title_fullStr Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities
title_full_unstemmed Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities
title_short Synthesis of benzylated amine-substituted xanthone derivatives and their antioxidant and anti-inflammatory activities
title_sort synthesis of benzylated amine substituted xanthone derivatives and their antioxidant and anti inflammatory activities
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