1,1-dimethylethyl (3R)-3-{[2-(chloromethyl)-1H-benzimidazol-1-yl]-methyl}-1-piperidinecarboxylate   、                                                                                      
(8S)-N-(2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}ethyl)-5,6,7,8-tetrahydro-8-quinolinamine   、                                                                                      1,1-dimethylethyl (3S)-3-{[2-({methyl[(8S)-5,6,7,8-tetrahydro-8-quinolinyl]amino}methyl)-1H-benzimidazol-1-yl]methyl}-1-piperidinecarboxylate                                                                                                                                                                                                                                                                                                          以afforded 0.40 g (37%) of 1,1-dimethylethyl (3R)-3-{[2-({(2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}ethyl)[(8S)-5,6,7,8-tetrahydro-8-quinolinyl]amino}methyl)-1H-benzimidazol-1-yl]methyl}-1-piperidinecarboxylate as a pale yellow foam的产率得到1,1-dimethylethyl (3R)-3-{[2-({(2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}ethyl)[(8S)-5,6,7,8-tetrahydro-8-quinolinyl]amino}methyl)-1H-benzimidazol-1-yl]methyl}-1-piperidinecarboxylate