100077-66-5
2,3,9,10-tetramethoxy-8,14-cycloberbin-13-one
+
19493-09-5
methylidene triphenyl phosphorane
→
~95%
100986-32-1
2,3,9,10-tetramethoxy-13-methylene-8,14-cycloberbine
10605-03-5
2,3,9,10-四甲氧基-13-甲基-5,13a-二氢-6H-异奎并[3,2-a]异喹啉