上游原料
6,8-dinitro-2H-1,4-benzoxazine-3(4H)-thioneEthyl hydrazinecarboxylate; Ethyl 1-hydrazinecarboxylateethyl 2-(6,8-dinitro-2H-1,4-benzoxazin-3-yl)-1-hydrazinecarboxylateEthyl hydrazinecarboxylate; Ethyl 1-hydrazinecarboxylate2H-1,4-benzoxazine-3(4H)-thione2,4-dihydro-1H-[1,2,4]triazolo[3,4-c][1,4]benzoxazin-1-one
