(3aR,5S,6R,6aR)-6-[bis(prop-2-enyl)amino]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxole-5-carbaldehyde 在
3 Angstroem MS 作用下,
以
苯 为溶剂,
生成 (5aR,6R,7R,8aR)-1-benzyl-5-allyl-1,3,3a,5a,6,7,8a,8b-octahydro-6,7-isopropylidenedioxy-4H-furo[2',3':5,6]pyrido[4,3-c]isoxazole