5-Methoxymethyl-1,2,3,4,5-pentamethyl-cyclopenta-1,3-diene 、
1,4-萘醌 以
乙醚 为溶剂,
反应 16.0h,
生成 (1α,4α,4aα,9aα,11s)-11-ethyl-1,4,4a,9a-tetrahydro-11-(methoxymethyl)-1,2,3,4,11-pentamethyl-1,4-methanoanthracene-9,10-dione 、 (1α,4α,4aα,9aα,11r)-11-ethyl-1,4,4a,9a-tetrahydro-11-(methoxymethyl)-1,2,3,4,11-pentamethyl-1,4-methanoanthracene-9,10-dione