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      Anti-Inflammatory Activity of a Novel Acetylene Isolated from the Roots of Angelica tenuissima NAKAI = Anti-Inflammatory Activity of a Novel Acetylene Isolated from the Roots of Angelica tenuissima NAKAI

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      https://www.riss.kr/link?id=A102131949

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      Three polyacetylenes, one novel and two known. were isolated from the root of Angelica tenuissima. U ing <sup>1</sup>H- and<sup>13</sup>C_NMR, COSY. HMBC, and HMQC, their truciure were found to be (3R,8S)-heptadeca-1-en-4.6-diyne-3,8-diol (1), falcarindiol (2). and oplopandiol (3). Absolute configuration of compound 1 were established using Mosher`s esterification. In addition. the polyacetylenes (1 - 3) were evaluated for their anti-inflammatory activity. Compounds 1 and 3 showed potent inhibitory activity against lipopolysaccharide-induced nitric oxide (N0) production in RAW267.7 macrophage cell with IC<sub>50</sub> value of 4.31 and 5.06 μM. respectively. Compound 1. strongly inhibited inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 in a concentration-dependent manner.
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      Three polyacetylenes, one novel and two known. were isolated from the root of Angelica tenuissima. U ing <sup>1</sup>H- and<sup>13</sup>C_NMR, COSY. HMBC, and HMQC, their truciure were found to be (3R,8S)-heptadeca-1-en-4.6-diy...

      Three polyacetylenes, one novel and two known. were isolated from the root of Angelica tenuissima. U ing <sup>1</sup>H- and<sup>13</sup>C_NMR, COSY. HMBC, and HMQC, their truciure were found to be (3R,8S)-heptadeca-1-en-4.6-diyne-3,8-diol (1), falcarindiol (2). and oplopandiol (3). Absolute configuration of compound 1 were established using Mosher`s esterification. In addition. the polyacetylenes (1 - 3) were evaluated for their anti-inflammatory activity. Compounds 1 and 3 showed potent inhibitory activity against lipopolysaccharide-induced nitric oxide (N0) production in RAW267.7 macrophage cell with IC<sub>50</sub> value of 4.31 and 5.06 μM. respectively. Compound 1. strongly inhibited inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 in a concentration-dependent manner.

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