[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an organic cation obtained by protonation of the secondary amino function of pseudoephedrine. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a pseudoephedrine. It is an enantiomer of a (1R,2R)-pseudoephedrine(1+)."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][NH2+1][C]"}]