8-苯基-1,4-二噁螺[4.5]癸烷-8-甲腈

2-(1,4-二氧杂螺[4.5]癸烷-8-亚基)乙酸乙酯

1-chloro-2-[(4-chlorophenyl)methyl]benzene

2-(5-溴-2-噻吩基)-1,3-二氧戊环

2-(4-oxopentanoyloxy)ethyl 4-oxopentanoate