上游原料
Imidazole; 1H-Imidazoletert-butyl [(tert-butoxycarbonyl)amino]carbothioylcarbamateethyl 3-bromo-2-oxopropanoate;ethyl 3-bromopyruvate;Bromopyruvic acid ethyl ester;ethyl 3-bromopyruvate;ethyl bromopyruvatetert-butyl (Z)-2-(acetamido)ethenylcarbamateethyl 3-bromo-2-[(Z)-2-(2-ethylbutanoyl)hydrazono]propanoate2-ethylbutanohydrazideethyl (5S,6S)-6-(acetamido)-5-[(tert-butoxycarbonyl)amino]-1-(2-ethylbutanoyl)-1,4,5,6-tetrahydro-3-pyridazinecarboxylateethyl (5S,6S)-6-(acetamido)-5-amino-1-(2-ethylbutanoyl)-1,4,5,6-tetrahydro-3-pyridazinecarboxylateethyl (5S,6S)-6-(acetamido)-5-([[(tert-butoxycarbonyl)amino][(tert-butoxycarbonyl)imino]methyl]amino)-1-(2-ethylbutanoyl)-1,4,5,6-tetrahydro-3-pyridazinecarboxylate(5S,6S)-6-(acetamido)-5-([[(tert-butoxycarbonyl)amino][(tert-butoxycarbonyl)imino]methyl]amino)-1-(2-ethylbutanoyl)-1,4,5,6-tetrahydro-3-pyridazinecarboxylic acidtert-butyl (E)-2-(acetamido)ethenylcarbamate