diethyl 2-[2-(1,3-dioxolan-2-yl)ethyl]propanedioate

二乙基(3-氧代丙基)丙二酸酯

2-(2-溴乙基)-1,3-二恶烷

1,3-Dioxolan-2-buttersaeure-ethylester

环戊二烯