5429-56-1
2-乙酰氨基丙烯酸
→
74265-38-6
methyl 2-acetamidobut-3-enoate
98337-17-8
2,2-diacetamidopropanoic acid
38409-68-6
3-acetylamino-3-methoxycarbonyl-Δ1-pyrazoline