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Isolation and structures of guaianolides from Carpesium macrocephalum
Mi-Ran Kim1, Chang-Soo Kim, Kyung-Hwa Hwang
1College of Pharmacy, Chungbuk National University, Cheongju 361-763, Korea.
Journal of Natural Products
|April 27, 2002
Abstract:
Two new guaianolides, 4alpha,10alpha-dihydroxy-1beta(H),5beta(H)-guai-11(13)-en-8alpha,12-olide (2) and 4beta,10beta-dihydroxy-5alpha(H)-1,11(13)-guaidien-8alpha,12-olide (3), from Carpesium macrocephalum were isolated, and their structures were elucidated on the basis of spectroscopic studies.