a coumarin compound from Angelica keiskei
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Bio-Agent Context: Research Results
|1. ||Stroke (Strokes)
- "Among the isolated coumarin derivatives; (-)-(3'S,4'S)-3'-acetoxy-4'-isovaleryloxy-3',4'-dihydroseselin (1), (-)-(3'S,4'S)-3'-acetoxy-4'-angeloyloxy-3',4'-dihydroseselin (2), (+)-(3'S,4'S)-3'-hydroxy-4'-angeloyloxy-3',4'-dihydroseselin (D-laserpitin) (3), (-)-(3'S,4'S)-3'-angeloyloxy-4'-hydroxy-3',4'-dihydroseselin (4), and osthole (5), only the 3'-acetoxy derivatives 1 and 2 were found to possess potent antinociceptive and anti-inflammatory activities, per os, without inducing any apparent acute toxicity as well as gastric damage, while all other compounds and extracts were found to be ineffective in the TPA-induced mouse ear edema model assay.
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