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1,2,4-三唑-3-羧酸甲酯(1)是抗病毒药三氮唑核苷(ribavirin)合成的重要中间体,是从氨基胍,经草酰化、环合、酯化、重氮化脱氨制得:
The 1,2,4-triazole-3-carboxylic acid methyl ester (1) is an important intermediate for the synthesis of antiviral ribavirin from aminoguanidine, oxalylation, cyclization, ester Deamination of diazotization in the system: