User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is zwitterionic form of D-alanyl-D-serine arising from migration of a proton from the OH of the carboxy terminus to the amino terminus. It is a tautomer of a D-alanyl-D-serine.
Assistant: This is a molecule that fits this description: C[C@@H]([NH3+])C(=O)N[C@H](CO)C(=O)[O-]
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#}
(2R)-2-[[(2R)-2-azaniumylpropanoyl]amino]-3-hydroxypropanoate
The molecule is zwitterionic form of D-alanyl-D-serine arising from migration of a proton from the OH of the carboxy terminus to the amino terminus. It is a tautomer of a D-alanyl-D-serine.