吗啉

meso-2,3-dibromo-1,4-diphenyl-1,4-butanedione

反-1,2-二苯酰乙烯

1,2-二苯甲酰基-1,2-二溴乙烷

2-bromo-3-morpholino-1,4-diphenyl-butane-1,4-dione