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Isolation and Structures of Guaianolides from Carpesium macrocephalum

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journal contribution
posted on 06.03.2002, 00:00 by Mi-Ran Kim, Chang-Soo Kim, Kyung-Hwa Hwang, Il-Yeong Park, Seoung-Soo Hong, Jong-Keun Son, Dong-Cheul Moon
Two new guaianolides, 4α,10α-dihydroxy-1β(H),5β(H)-guai-11(13)-en-8α,12-olide (2) and 4β,10β-dihydroxy-5α(H)-1,11(13)-guaidien-8α,12-olide (3), from Carpesium macrocephalum were isolated, and their structures were elucidated on the basis of spectroscopic studies.