2,2,2-三氟-1-(2-甲氧基-1-环戊烯-1-基)乙酮

1-溴环戊-1-烯

6,7,14,15,22,23-hexaoxatrispiro[4.2.5⁸.2.5¹⁶.2⁵]tricosane

methyl 4-cyclopentylidene-4-trimethylsilyloxybutanoate

methyl 2,3-dihydro-1H-cyclopenta[a]azulene-9-carboxylate