4-羧丁基三苯基溴化膦 、
(3aS,4R,5R,6aR)-5-[tert-butyl(diphenyl)silyl]oxy-4-[(E,3S)-3-hydroxy-4-methyloct-1-en-6-ynyl]-3,3a,4,5,6,6a-hexahydro-1H-pentalen-2-one 在
potassium tert-butylate 作用下,
生成 5-[(3aS,4R,5R,6aS)-5-(tert-Butyl-diphenyl-silanyloxy)-4-((E)-(S)-3-hydroxy-4-methyl-oct-1-en-6-ynyl)-hexahydro-pentalen-(2Z)-ylidene]-pentanoic acid 、 5-[(3aS,4R,5R,6aS)-5-(tert-Butyl-diphenyl-silanyloxy)-4-((E)-(S)-3-hydroxy-4-methyl-oct-1-en-6-ynyl)-hexahydro-pentalen-(2E)-ylidene]-pentanoic acid