上游原料
2-Chloroacetyl chloride; Chloroacetic chloride3-hydroxy-4-nitrobenzaldehyde5-(1,3-dioxan-2-yl)-2-nitrophenol(rac)-2-amino-5-(1,3-dioxan-2-yl)phenol2-chloro-N-[4-(1,3-dioxan-2-yl)-2-hydroxyphenyl]acetamide2-chloro-N-(4-formyl-2-hydroxyphenyl)acetamide3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carbaldehyde3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carbaldehyde1-(4-chlorophenyl)piperazine7-(hydroxymethyl)-2H-1,4-benzoxazin-3(4H)-one(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl)methyl 4-methylbenzenesulfonate