[(1S)-1-[3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl]-2-(3,5-dichloro-1-oxido-pyridin-1-ium-4-yl)ethyl] 2-hydroxy-3-[(2-hydroxyanilino)methyl]benzoate 、
(R)-quinuclidin-3-yl carbonochloridate hydrochloride 以
乙腈 为溶剂,
反应 1.0h,
以to provide the title compound as a pale yellow solid (130 mg, 42%)的产率得到[(1S)-1-[3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl]-2-(3,5-dichloro-1-oxido-pyridin-1-ium-4-yl)ethyl] 2-hydroxy-3-[(2-hydroxy-N-[(3R)-quinuclidin-3-yl]oxycarbonyl-anilino)methyl]benzoate formate salt