Diethylamine → 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate
Reaction equation
[CH3:1][O:2][C:3]([CH:5]1[CH2:10][N:9](C(OCC2C3C=CC=CC=3C3C2=CC=CC=3)=O)[CH2:8][CH2:7][N:6]1[C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])=[O:4].C(NCC)C>CN(C=O)C>[CH3:1][O:2][C:3]([CH:5]1[CH2:10][NH:9][CH2:8][CH2:7][N:6]1[C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])=[O:4]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of piperazine-1,2,4-tricarboxylic acid 1-tert-butyl ester 4-(9H-fluoren-9-ylmethyl) ester 2-methyl ester (2.03 mmol) in DMF (4.0 mL) was added diethylamine (5%) and the resulting solution was stirred at room temperature overnight. The reaction mixture was concentrated in vacuo and purified using ethyl acetate/methanol (10%). ESI-MS m/z: 245 (M+1), UV retention time: 0.78 min.