反应详情

A mixture of tert-butyl 4-[(5,6-dimethyl-8-nitrotetraazolo[1,5-a]pyridin-7-yl)amino]butylcarbamate (9.00 g, 23.7 mmol), 10% palladium on carbon (900 mg), and acetonitrile (100 mL) was hydrogenated on a Parr apparatus for 5 hours. The mixture was filtered through CELITE filter agent, which was rinsed afterwards with methanol. The filtrate was concentrated under reduced pressure to yield 6.70 g of tert-butyl 4-[(8-amino-5,6-dimethyltetraazolo[1,5-a]pyridin-7-yl)amino]butylcarbamate.

1. filtrationThe mixture was filtered through CELITE
2. filtrationfilter agent, which
3. washwas rinsed afterwards with methanol
4. concentrationThe filtrate was concentrated under reduced pressure