ethyl 4-(4-fluorophenyl)-2-methylbuta-2,3-dienoate

2-[4,6-Dimethoxy-5-methyl-pyran-(2E)-ylidene]-propionic acid ethyl ester

(E)-4-((Z)-3-Ethoxycarbonyl-1-methoxy-but-2-enyloxy)-4-methoxy-2-methyl-but-2-enoic acid ethyl ester

(4R)-5-[1,1'-联苯]-4-基-4-[[叔丁氧羰基]氨基]-2-甲基-2-戊烯酸乙酯

(2E,4R)-ethyl 5-((tert-butyldimethylsilyl)oxy)-2,4-dimethylpent-2-enoate