L A G V S E R T I D P K Q N F Y M H W C X B U Z O . - a c g t n u [Branch3] [C@@H1] [P] [#Branch1] [C] [Branch2] [O] [S] [Branch1] [=O] [#C] [C@H1] [=Branch1] [=N] [#Branch2] [N] [=C] [Ring1] [NH1] [Branch4] [Ring2] [=Branch2]