Structure of a guaiane-type sesquiterpene ether from “san-shion”

✍ Scribed by Hiroshi Hirota; Yoshiaki Tanahashi; Takeyoshi Takahashi

• Publisher: Elsevier Science
• Year: 1975
• Tongue: French
• Weight: 237 KB
• Volume: 16
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)91075-x

✦ Synopsis

It has been reported that the benzene extract of "San-shlon" (mountain Shlon the roots of a Ligularia genus) 1,2) gives five volatile constituents (LA-LE, tentative names) 1) along with furanoligularenone 2) and llgularenollde 3) Four (LA, LC, LD, and LE) of the volatile constituents have been shown to be identical with cyperene, llguloxide, p-cymene, and limonene, respectively la,b) Recently, FuJita and Fujlta 4) described the Identity of LB with ogarukayaehter A, isolated from Cymbopogon Georlngll (STEUD ) A. CAMUS, and the structure (1) was proposed for ogarukaya-ether A based on blogenetlc conslderatlons '+b) We wrsh to report evidences leading to the structure (2) for LB