Trifluoroacetic acid → 1-({1-[(6-Methylpyridin-3-yl)carbonyl]azetidin-3-yl}carbonyl)-1,4-diazepane
반응식
[CH3:1][C:2]1[N:7]=[CH:6][C:5]([C:8]([N:10]2[CH2:13][CH:12]([C:14]([N:16]3[CH2:22][CH2:21][CH2:20][N:19](C(OC(C)(C)C)=O)[CH2:18][CH2:17]3)=[O:15])[CH2:11]2)=[O:9])=[CH:4][CH:3]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH3:1][C:2]1[N:7]=[CH:6][C:5]([C:8]([N:10]2[CH2:13][CH:12]([C:14]([N:16]3[CH2:22][CH2:21][CH2:20][NH:19][CH2:18][CH2:17]3)=[O:15])[CH2:11]2)=[O:9])=[CH:4][CH:3]=1참가 물질
4
실험 절차
To a stirred solution of tert-butyl 4-({1-[(6-methylpyridin-3-yl)carbonyl]azetidin-3-yl}carbonyl)-1,4-diazepane-1-carboxylate (455 mg, 1.13 mmol) in DCM (10 mL) was added TFA (440 μL, 5.65 mmol) and stirred at room temperature for 24 hours. The reaction was re-charged with TFA (0.5 mL, 6.5 mmol) and the reaction stirred for a further 5 hours until consumption of starting materials seen by TLC. Volatiles were removed at reduced pressure and the crude product shaken with Ambersep 900-OH resin in DCM (20 ml) for 2 hours. The resin was removed by filtration and the washings concentrated at reduced pressure to give the title compound (302 mg, 89%).