2-(3-{N'-[1-Cyano-2-ethoxycarbonylamino-2-oxo-eth-(Z)-ylidene]-hydrazino}-5-nitro-phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-[1,2,4]triazine-6-carboxylic acid 在
吡啶 作用下,
反应 21.0h,
以87%的产率得到2-[3-nitro-5-(3,5-dioxo-2,3,4,5-tetrahydro-6-cyano-1,2,4-triazin-2-yl)phenyl]-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-carboxylic acid