4-(二乙基膦酰)-3-甲基-2-丁烯腈

对二甲氨基苯甲醛

ethyl 4-hydroxy-3-methylbut-2-enoate

(E)-ethyl 4-chloro-3-methylbut-2-enoate

ethyl (2E,4E)-5-(4-(dimethylamino)phenyl)-3-methylpenta-2,4-dienoate