Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 49, Issue 2, Pages 154-160Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.49.154
Keywords
Saposhnikovia divaricata; analgesia; divaricatol; (3 ' S)-hydroxydeltoin; chromone; 1-acylglycerol
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By activity-oriented separation using the writhing method in mice, the analgesic components of Saposhnikovia root (Saposhnikovia divaricata Schischkin; Umbelliferae) were identified to be chromones, coumarins, polyacetylenes and 1-acylglycerols. Two new components, divaricatol and (3'S)-hydroxydeltoin, were also isolated. The most potent analgesia was observed in chromones such as divaricatol, ledebouriellol and hamaudol, which inhibited writhing inhibition at an oral dose of 1 mg/kg in mice. Acylglycerols also showed inhibition significantly at a dose of 5 mg/kg. In some pharmacological tests using sec-O-glucosylhamaudol, the compound showed analgesia by the tail pressure and the Randall & Selitto methods, and its writhing inhibition was not reversed by naloxone.
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