上游原料
Benzocaine; ethyl 4-aminobenzoate3-[6-(1,2-diboriran-3-yl)hexaboranyl]-1,2-diborirane3-[6-(1,2-dimethyl-1,2-diboriran-3-yl)-1,2,3,4,5,6-hexamethylhexaboranyl]-1,2-dimethyl-1,2-diborirane3-[6-(1,2-dimethyl-1,2-diboriran-3-yl)-1,2,3,4,5,6-hexamethylhexaboranyl]-1,2-dimethyl-1,2-diborirane-3-carboxylic acid3-[6-(1,2-dimethyl-1,2-diboriran-3-yl)-1,2,3,4,5,6-hexamethylhexaboranyl]-1,2-dimethyl-1,2-diborirane-3-carbonyl chlorideethyl 4-[([3-[6-(1,2-dimethyl-1,2-diboriran-3-yl)-1,2,3,4,5,6-hexamethylhexaboranyl]-1,2-dimethyl-1,2-diboriran-3-yl]carbonyl)amino]benzoate
