User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a sphingomyelin d18:1 in which the ceramide N-acyl group is specified as icosanoyl. It has a role as an animal metabolite. It is a sphingomyelin 38:1 and a sphingomyelin d18:1. It derives from an icosanoic acid.
Assistant: This is a molecule that fits your description: CCCCCCCCCCCCC/C=C/[C@@H](O)[C@H](COP(=O)([O-])OCC[N+](C)(C)C)NC(=O)CCCCCCCCCCCCCCCCCCC
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#}
[(E,2S,3R)-3-hydroxy-2-(icosanoylamino)octadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is a sphingomyelin d18:1 in which the ceramide N-acyl group is specified as icosanoyl. It has a role as an animal metabolite. It is a sphingomyelin 38:1 and a sphingomyelin d18:1. It derives from an icosanoic acid.