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New macrocyclic trichothecenes from Baccharis megapotamica
B B Jarvis1, S N Cömezoğlu, H L Ammon
1Department of Chemistry and Biochemistry, University of Maryland, College Park 20782.
Journal of Natural Products
|September 1, 1987
Abstract:
The isolation and structural elucidation of biologically active baccharinoids B1 [11a], B2 [12a], B3 [5a], and B7 [6a] are reported with crystal structure determinations of baccharinoid B7 and of the triacetate of baccharinoid B2. All four compounds are isomeric with 11a/12a and 5a/6a being epimeric at C13'.