上游原料
Ethyl isonipecotate; ethyl 4-piperidinecarboxylate1-bromobutane8-(acetamido)-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid8-(acetamido)-7-chloro-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid8-amino-7-chloro-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid(8-amino-7-chloro-2,3-dihydro-1,4-benzodioxin-5-yl)(1H-imidazol-1-yl)methanone(1-butyl-4-piperidinyl)methanol
