User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a phosphatidylcholine 27:0 in which the acyl groups at positions 1 and 2 are specified as octadecanoyl and nonanoyl respectively. It derives from an octadecanoic acid and a nonanoic acid.
Assistant: This is a molecule that fits your description: CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)OC(=O)CCCCCCCC
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#}
CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)OC(=O)CCCCCCCC
[(2R)-2-nonanoyloxy-3-octadecanoyloxypropyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is a phosphatidylcholine 27:0 in which the acyl groups at positions 1 and 2 are specified as octadecanoyl and nonanoyl respectively. It derives from an octadecanoic acid and a nonanoic acid.