Benzoic acid (3S,3aS,5aR,6R,8R,9R,9aS,9bS)-6-methanesulfonyloxy-3,5a,9-trimethyl-2-oxo-dodecahydro-naphtho[1,2-b]furan-8-yl ester 在
potassium acetate 、
溶剂黄146 、
间氯过氧苯甲酸 作用下,
生成
(11S)-3α-(benzoyloxy)-4βH-guai-10(14)-eno-13,6α-lactone 、 [(1R,3S,6S,7S,10S,11R,12S,13R)-3,7,12-trimethyl-8-oxo-2,9-dioxatetracyclo[9.3.0.01,3.06,10]tetradecan-13-yl] benzoate 、
(11S)-3α-(benzoyloxy)-1α,10α-epoxy-4βH-guaiano-13,6α-lactone