[C:1]([O:5][C:6]([NH:8][C:9]1[CH:17]=[CH:16][CH:15]=[CH:14][C:10]=1[C:11]([OH:13])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:18]CN=C=NCCCN(C)C.Cl.C1C=C[C:33]2[N:38]([OH:39])N=NC=2C=1.C(N(CC)CC)C>C(#N)C.CCOC(C)=O.CCCCCC>[C:1]([O:5][C:6](=[O:7])[NH:8][C:9]1[CH:17]=[CH:16][CH:15]=[CH:14][C:10]=1[C:11](=[O:13])[N:38]([O:39][CH3:18])[CH3:33])([CH3:2])([CH3:3])[CH3:4]To the stirred solution of 2-tert-Butoxycarbonylamino-benzoic acid in acetonitrile (20 ml) is added N,O-hydroxylaminehydrochloride, EDC.HCl (1.520 g, 7.929 mmol), HOBT (1.300 g, 8.497 mmol) and triethylamine (2.500 g, 24.752 mmol) is stirred at room temperature for 40 mins. The progress of the reaction is monitored by TLC (30% EtOAc/Hexane).
読み込み中…