51566-65-5
ethyl 1-(5-bromopentyl)-2-oxocyclopentane-1-carboxylate
→
~74%
51566-66-6
2-(5-bromopentyl)cyclopentan-1-one
111-24-0
二溴戊烷
611-10-9
2-氧代环戊羧酸乙酯