8-methoxy-2,7,9,10-tetrahydro-1H-tricyclo[6.2.2.0^2,7]dodeca-3,9-diene-3,6-dione

重氮甲烷

蒽醌-1,5-二磺酸二钠盐

甲醇钠

1,5-二氯蒽醌