Collect. Czech. Chem. Commun. 1984, 49, 637-641

9α-Hydroxyparthenolide from Zoegea baldschuanica C. WINKL. and its absolute configuration

Miloš Buděšínskýa, David Šamana, Gerard Nowakb, Bohdan Drożdżb and Miroslav Holubb

a Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6, Czechoslovakia
b Department of Medicinal Plants, Academy of Medicine, 60-623 Poznan, Poland


From the aerial parts of Zoegea baldschuanica C. WINKL. was isolated 9α-hydroxyparthenolide (I), whose absolute configuration was established on the basis of CD spectra. 1 H NMR data for I, parthenolide (VI) and the derivatives III and IV are discussed.