((2R,4aR,6S,7R,8S,8aR)-6,8-Dimethoxy-2-phenyl-8-prop-2-ynyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl)-acetaldehyde 在
三正丁基氢锡 作用下,
生成 (3R,4aR,4bS,7S,8aR,9S,10aR)-4b,9-Dimethoxy-6-methylene-3-phenyl-decahydro-2,4,10-trioxa-phenanthren-7-ol 、 (3R,4aR,4bS,7R,8aR,9S,10aR)-4b,9-Dimethoxy-6-methylene-3-phenyl-decahydro-2,4,10-trioxa-phenanthren-7-ol