3a,6-dimethyl-2,3a,4,5,7,8,9,10-octahydro-cyclopent[a]anthracen-3-one

邻溴甲苯

Benzenepropanoyl chloride, 2-bromo-

2-(2-溴苄基)丙二酸二乙酯

4-溴-1-茚酮