3-but-2-enyl-3,8,8,10,10-pentamethyl-11-oxido-9H-pyrano[3,2-a]carbazol-11-ium 、
dec-9-enyl 5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoate 在
(1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)-(tricyclohexylphosphine)ruthenium 作用下,
以
二氯甲烷 为溶剂,
以43%的产率得到[(E)-11-(3,8,8,10,10-pentamethyl-11-oxido-9H-pyrano[3,2-a]carbazol-11-ium-3-yl)undec-9-enyl] 5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoate