丁二酸单乙酯酰氯

3-ethoxycarbonylhex-5-enoate

3-(3,4-dihydronaphthalen-1-yl)-4-ethoxy-4-oxobutanoic acid

ethyl 4-oxo-4-(1H-pyrrol-2-yl)butanoate

4-氧代-4-噻吩-2-基-丁酸乙酯