上游原料
2-isocyanato-1,1'-biphenyl1-benzyl-4-piperidinol; 1-benzyl-4-hydroxypiperidine; N-Benzyl-4-hydroxypiperidine; 1-(benzyl)-4-piperidinolpiperidin-4-yl [1,1'-biphenyl]-2-ylcarbamatebenzyl methyl(2-oxoethyl)carbamatebenzyl (2-(4-(([1,1'-biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamate1-(2-(methylamino)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate4-formylbenzoic acid1-(2-(4-formyl-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate4-Piperidinecarboxamide; Isonipecotamide
