User: I'm looking for the SMILES of a molecule that can be described by:
The molecule is conjugate acid of (S)-piperazine-2-carboxamide arising from selective protonation at the 4-position. It is a conjugate acid of a (S)-piperazine-2-carboxamide.
Assistant: This is a molecule that fits this description: NC(=O)[C@@H]1C[NH2+]CCN1
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
(2S)-piperazin-4-ium-2-carboxamide
The molecule is conjugate acid of (S)-piperazine-2-carboxamide arising from selective protonation at the 4-position. It is a conjugate acid of a (S)-piperazine-2-carboxamide.