反应详情

A solution of tert-butyl ((4aRS,11bRS)-3,3,11b-trimethyl-10-nitro-4,4-dioxido-4a,5,6,11b-tetrahydro-3H-benzo[6,7]oxepino[4,5-b][1,4]thiazin-2-yl)carbamate (100 mg, 0.221 mmol) in EtOAc (2 ml) and EtOH (2 ml) was hydrogenated under hydrogen balloon in the presence of palladium, 10% wt. on activated carbon (50 mg, 0.047 mmol) for 30 min. The mixture was filtered through the plug of Celite, filter cake was washed with ethyl acetate. The combined filtrate was concentrated ton afford crude tert-butyl ((4aRS,11bRS)-10-amino-3,3,11b-trimethyl-4,4-dioxido-4a,5,6,11b-tetrahydro-3H-benzo[6,7]oxepino[4,5-b][1,4]thiazin-2-yl)carbamate (70 mg, 0.165 mmol, 75.0% yield) which was used without further purification.

1. customfor 30 min
2. filtrationThe mixture was filtered through the plug of Celite
3. filtrationfilter cake
4. washwas washed with ethyl acetate
5. concentrationThe combined filtrate was concentrated ton