5745-61-9
3,3a,4,5,6,6a-hexahydrocyclopenta[b]furan-2-one
→
101714-61-8
ethyl 2-(2-bromocyclopentyl)acetate
74-96-4
溴乙烷
10082-36-7
(+/-)-(3aR,6aR)-hexahydro-2H-cyclopenta[b]furan-2-one