User: I'm searching for the SMILES of a molecule that can be described by:
The molecule is an N-acyl-15-methylhexadecasphing-4-enine-1-phosphocholine in which the acyl group has 19 carbons and 0 double bonds and is 2-hydroxylated. It derives from a 15-methylhexadecasphing-4-enine.
Assistant: This is a molecule that fits your description: CCCCCCCCCCCCCCCCCC(O)C(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CCCCCCCCCC(C)C
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-(2-hydroxynonadecanoylamino)-15-methylhexadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is an N-acyl-15-methylhexadecasphing-4-enine-1-phosphocholine in which the acyl group has 19 carbons and 0 double bonds and is 2-hydroxylated. It derives from a 15-methylhexadecasphing-4-enine.