4-Methyl-N-[1-methyl-3-[1-phenyl-meth-(E)-ylidene]-1,3-dihydro-indol-(2E)-ylidene]-benzenesulfonamide 、
4-phenyl-4-vinyl-1,3-dioxolan-2-one 在
allyl(cyclopentadiene)palladium(II) 、
(S)-4-tert-butyl-2-[2-(di-o-tolylphosphino)phenyl]-4,5-dihydro-1,3-oxazol 作用下,
以
四氢呋喃 为溶剂,
以84%的产率得到(Z)-12-methyl-4,7-diphenyl-1-tosyl-2,5,7,12-tetrahydro-1H-[1,5]oxazonino[4,3-b]indole