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Enhanced radical scavenging activity of a procyanidin B3 analogue comprised of a dimer of planar catechin.

Abstract：

:Proanthocyanidins are oligomers of catechins that exhibit potent antioxidative activity and inhibit binding of oxidized low-density lipoprotein (OxLDL) to the lectin-like oxidized LDL receptor (LOX-1), which is involved in the onset and development of arteriosclerosis. Previous attempts aimed at developing proanthocyanidin derivatives with more potent antioxidative activity and stronger inhibition for LOX-1 demonstrated the synthesis of a novel proanthocyanidin derivative (1), in which the geometry of one catechin molecule in procyanidin B3 was constrained to a planar orientation. The radical scavenging activity of 1 was 1.9-fold higher than that of procyanidin B3. Herein, we synthesized another procyanidin B3 analogue (2), in which the geometries of both catechin molecules in the dimer were constrained to planar orientations. The radical scavenging activity of 2 was 1.5-fold higher than that of 1, suggesting that 2 may be a more effective candidate than 1 as a therapeutic agent to reduce oxidative stress induced in arteriosclerosis or related cerebrovascular disease.

journal_name

Bioorg Med Chem Lett

journal_title

Bioorganic & medicinal chemistry letters

authors

Mizuno M,Nakanishi I,Matsumoto KI,Fukuhara K

doi

10.1016/j.bmcl.2017.10.007

subject

Has Abstract

pub_date

2017-11-15 00:00:00

pages

5010-5013

issue

22

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(17)30981-2

journal_volume

27

pub_type

杂志文章

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