trans-1-bromo-3-methylbuta-1,3-diene 、
6-Acetoxy-3-methoxy-8-methylnaphthoquinone 生成 Naphtho[1,2-b]furan-4,5-dione,2,3-dihydro-7-hydroxy-2,2,3,9-tetramethyl- 、 (+/-)-2,3,4,5-Tetrahydro-7-hydroxy-2,3,3,9-tetramethylnaphtho<1,2-b>furan-4,5-dione <(+/-)-Trypethelone>