Marchal, JeanCentre de Recherches sur les Macromolécules, C.N.R.S., Laboratoire de Physico‐chimie des Polymères sous Rayonnements, 6, rue Boussingault, 67000 Strasbourg, FranceDie Makromolekulare Chemie
Epimerisation of the C–21 substituent has been observed during methanolic sodium hydroxyde hydrolysis of acetoxy-12, 19-dioxo-Δ9(11), 13(18-coriaceolide and diacetoxy-12, 19-dioxo-Δ9(11), 13(18-methyl machaerinate.Daloze, D....