[N:1]1([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:6][CH2:5][CH:4]([C:7]([O-:9])=O)[CH2:3][CH2:2]1.[NH2:17][CH:18]([C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1)[CH:19]([C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)O>>[C:27]1([C:18]2[N:17]=[C:7]([CH:4]3[CH2:3][CH2:2][N:1]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:6][CH2:5]3)[O:9][C:19]=2[C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=2)[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=1Starting from 1.08 g mono-tert-butyl piperidine-1,4-dicarboxylate and 1 g 2-amino-1,2-diphenyl-ethanol the product may be obtained as described in the literature (see Tet. 2001, 4867). The product is purified by chromatography (method B). 560 mg are obtained as an oil. Analytical HPLC-MS (method A): RT=1.72 min.
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