[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[C:7]1[N:11]=[C:10]([CH2:12][CH2:13][C:14]([NH:16][CH:17]2[CH2:22][CH2:21][N:20](C(OC(C)(C)C)=O)[CH2:19][CH2:18]2)=[O:15])[O:9][N:8]=1.FC(F)(F)C(O)=O.O.[OH-].[Na+]>ClCCl>[NH:20]1[CH2:21][CH2:22][CH:17]([NH:16][C:14](=[O:15])[CH2:13][CH2:12][C:10]2[O:9][N:8]=[C:7]([C:2]3[CH:3]=[CH:4][CH:5]=[CH:6][N:1]=3)[N:11]=2)[CH2:18][CH2:19]1tert-Butyl 4-({3-[3-(2-pyridinyl)-1,2,4-oxadiazol-5-yl]propanoyl}amino)-1-piperidinecarboxylate (0.40 g) was dissolved in dichloromethane (6 ml) and trifluoroacetic acid (3 ml) was added. After 2 hours water, 2N sodium hydroxide and dichloromethane were added and the phases were separated. The organic phase was dried, filtered and evaporated to give the subtitle compound (0.19 g).
Wird geladen…