[N:1]1([CH2:7][CH2:8][OH:9])[CH2:6][CH2:5]N[CH2:3][CH2:2]1.[C:10]([Si:14]([CH3:34])([CH3:33])[O:15][Si:16]([CH:26]([CH2:29][CH:30]1[CH2:32][O:31]1)CC)([CH3:25])[O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])([CH3:13])([CH3:12])[CH3:11]>C(O)C>[O:15]([Si:16]([O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])([CH3:25])[CH2:26][CH2:29][CH2:30][O:31][CH2:32][CH:8]([OH:9])[CH2:7][N:1]1[CH2:6][CH2:5][CH:26]([CH2:29][CH2:30][OH:31])[CH2:3][CH2:2]1)[Si:14]([C:10]([CH3:11])([CH3:13])[CH3:12])([CH3:34])[CH3:33]2-piperazin-1-yl-ethanol (0.61 g) and ethanol (20 mL) were charged to a 100 mL RB flask equipped with a magnetic stirrer. The mixture was stirred and heated to 70° C. 1,5-Di(tert-butyl)-3-(oxiranylmethylpropyl)-1,1,3,5,5-Pentamethyltrisiloxane (2.0 g) was placed in an addition funnel and added dropwise to the flask. The mixture was stirred and maintained at 70° C. for an additional 4 hours. The reaction progress was monitored by NMR spectroscopy. Upon reaction completion, the ethanol was removed by rotovap, and the mixture was distilled under reduced pressure to remove impurities.
불러오는 중…