(R)-3-(2,2-diphenyl-propionyloxy)-1-(isoxazol-3-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromide 、 Cyclopentyl-furan-2-yl-hydroxy-acetic acid 生成 (R)-3-(2-cyclopentyl-2-furan-2-yl-2-hydroxy-acetoxy)-1-(isoxazol-3-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromide