(8S)-N-({4-[(8aR)-hexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl]-1H-benzimidazol-2-yl}methyl)-N-methyl-5,6,7,8-tetrahydro-8-quinolinamine 、
3-[(8aR)-Hexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl]-2-nitroaniline 、
N-ethyl-N-[(8S)-5,6,7,8-tetrahydro-8-quinolinyl]qlycine 以to afford an orange solid (20 mg, 23%)的产率得到