title: Stereoselective reactions. XII. Synthesis of antitumor-active steganacin analogs, picrosteganol and epipicrosteganol, by selective isomerization.
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives / Q000138:chemical synthesis*; D000972:Antineoplastic Agents, Phytogenic / Q000138:chemical synthesis*; D005663:Furans / Q000138:chemical synthesis*; D007783:Lactones / Q000138:chemical synthesis*; D017705:Lignans; D008968:Molecular Conformation; D013237:Stereoisomerism; D014961:X-Ray Diffraction
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D005663:Furans; D007783:Lactones; D017705:Lignans; C002858:steganacin; C049619:picrosteganol; D015107:4-Butyrolactone