V. Kesternich et R. Martinez, STERIC CONTROL IN THE SYNTHESIS OF TRANS-(1-ALPHA-H 5-BETA-OH)-3,10-GUAIADIEN-6,12-OLIDE, Boletin de la Sociedad Chilena de Quimica, 42(3), 1997, pp. 401-403
The first biomimetic synthesis of trans-(1 alpha-H;5 beta-OH)-3,10-gua
iadien-6,12-olide was possible via allylic induction over the epoxidat
ion as key step. The starting material was alpha-santonin, an eudesman
olide.