3-甲酰基-2-丁烯酸乙酯

甲酰甲撑基三苯基磷

ethyl 3,7-dimethylocta-2,4,6-trienoate

(E)-4,4-Dimethoxy-3-methyl-crotonsaeureaethylester

(甲酰甲基)三苯基氯化磷