反应详情

3,5-Dichloro-4-((S)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-((S)-3-(3-(2-(3-((phenylamino)methyl)benzamido)ethylcarbamoyl)phenylsulfonyl)-thiazolidine-2-carbonyloxy)ethyl)pyridine 1-oxide (35 mg, 0.036 mmol) was dissolved in pyridine (2 ml). (R)-quinuclidin-3-yl carbonochloridate hydrochloride (described in the co-pending International Patent Application No. PCT/EP2013/075529 (published as WO 2104/086855) (8.15 mg, 0.036 mmol) was added, and the reaction was stirred at room temperature for 6 hrs to achieve completion. The reaction mixture was diluted with HCl 1N and extracted with ethyl acetate. The organic phase was washed with water, brine, dried over Na2SO4 and concentrated under vacuum. The crude was purified by preparative HPLC to give 3,5-dichloro-4-((S)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(((S)-3-((3-((2-(3-((phenyl(((R)-quinuclidin-3 yloxy)carbonyl)amino)methyl)benzamido)ethyl)carbamoyl)-phenyl)sulfonyl)thiazolidine-2-carbonyl)oxy)ethyl)pyridine 1-oxide formate (12.65 mg, 10.81 μmol, 30% yield).

1. additionPCT/EP2013/075529 (published as WO 2104/086855) (8.15 mg, 0.036 mmol) was added
2. extractionextracted with ethyl acetate
3. washThe organic phase was washed with water, brine
4. dry with materialdried over Na2SO4
5. concentrationconcentrated under vacuum
6. customThe crude was purified by preparative HPLC