Ammonium Chloride → HCID 86595609, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of the compound obtained in Step 2 (200 mg) in dichloromethane (6 mL) were added (2S)-2-(N,N-dimethylaminocarbonyl)pyrrolidine hydrochloride and diisopropylethylamine (0.27 ml) at 5° C. The mixture was stirred at 5° C. for 10 min. Then sodium triacetoxyborohydride (327 mg) was added, and the mixture was stirred for 3 hrs. aq. NH4Cl was added, and the mixuture was extracted with dichloromethane. The organic layer was dried over MgSO4. The layer was concentrated under reduced pressure. The resulting crude mixture was purified by silica gel column chlomatography with mixed solvent (dichloromethane/methanol=15/1) as an eluent to give tert-butyl (4-{2-[2-(acetylamino)-5-({(2S)-2-[(N,N-dimethylamino)carbonyl]-1-pyrrolidinyl}methyl)-1,3-thiazol-4-yl]ethyl}phenyl)carbamate as a pale yellow amorphous substance.

Provenance & Evidence