反应详情

A solution of 120 mg (0.22 mmol) (R)-1-carboxy-2-(7-methyl-1H-benzimidazol-5-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, 85 mg (0.27 mmol) TBTU and 120 μL (0.86 mmol) triethylamine in 10 mL THF and 1 mL DMF was stirred for 1 h at RT, then combined with 90 mg (0.27 mmol) 1-benzyl-4-piperidin-4-yl-piperazine (used as the bishydrochloride salt) and stirred overnight at RT. The reaction solution was combined with 1 mL semisaturated NaHCO3 solution and extracted with 100 mL EtOAc. The organic phase was dried over Na2SO4, filtered and evaporated down i.vac.

1. extractionextracted with 100 mL EtOAc
2. dry with materialThe organic phase was dried over Na2SO4
3. filtrationfiltered
4. customevaporated down i.vac