[C:1]([O:5][C:6](=[O:9])[CH2:7][NH2:8])([CH3:4])([CH3:3])[CH3:2].[CH2:10]([C:12]([CH2:18][CH3:19])([CH2:16][CH3:17])[CH2:13][CH:14]=O)[CH3:11]>C(Cl)Cl>[C:1]([O:5][C:6](=[O:9])[CH2:7]/[N:8]=[CH:11]/[CH2:10][C:12]([CH2:18][CH3:19])([CH2:16][CH3:17])[CH2:13][CH3:14])([CH3:4])([CH3:3])[CH3:2]Step F In a manner similar to the method described in Example 1a, glycine tert-butyl ester (0.92 g, 7 mmol) was reacted with 3,3-diethyl-pentanal (1 g, 7 mmol) in CH2Cl2 at room temperature for 5 h to give [3,3-diethyl-pent-(E)-ylideneamino]-acetic acid tert-butyl ester as a colorless oil (1.8 g, 100%).
불러오는 중…