上游原料
2-amino-3-nitrophenol2-(benzyloxy)-4-bromo-6-nitroanilineN-(2-(benzyloxy)-4-cyano-6-nitrophenyl)acetamide4-(benzyloxy)-2-methyl-1H-benzo[d]imidazole-6-carbonitrile4-(benzyloxy)-N,N,2-trimethyl-1H-benzo[d]imidazole-6-carboxamide4-hydroxy-N,N,2-trimethyl-1-tosyl-1H-benzo[d]imidazole-6-carboxamide5,7-difluorochroman-4-ol(S)-4-((5,7-difluorochroman-4-yl)oxy)-N,N,2-trimethyl-1-tosyl-1H-benzo[d]imidazole-6-carboxamide
