5-(4-Methylimidazol-1-yl)bicyclo[4.2.0]octa-1,3,5-triene-2-carbaldehyde 、
Methyl 3-(4-fluorophenyl)-8-hydroxyspiro[5,8-dihydro-[1,2,4]oxadiazolo[3,4-c][1,4]oxazine-6,3'-oxetane]-3-carboxylate 在
三苯基膦氢溴酸盐 、
potassium tert-butylate 作用下,
生成 methyl 3-(4-fluorophenyl)-8-[[5-(4-methylimidazol-1-yl)-2-bicyclo[4.2.0]octa-1,3,5-trienyl]methylidene]spiro[5H-[1,2,4]oxadiazolo[3,4-c][1,4]oxazine-6,3'-oxetane]-3-carboxylate