325855-84-3
(4Z)-methyl 2-acetyl-4-chloro-5-(dimethylamino)penta-2,4-dienoate
→
~94%
350597-49-8
5-氯-2-甲基-3-吡啶羧酸甲酯
105-45-3
乙酰乙酸甲酯