N-tert-butoxycarbonyl-N-(2-pyridinylmethyl)-N'-(1-(2-trimethylsilylethoxymethyl)-1H-benzimidazol-2-ylmethyl)-N'-(8-methyl-5,6,7,8-tetrahydro-8-quinolinyl)-1,4-benzenedimethanamine|化工社