Task: Please give me a SMILES based on the text description below.
Description: The molecule is a sphingomyelin obtained by formal condensation of the carboxy group of octadecanoic acid with the amino group of 15-methylhexadecasphingosine-1-phosphocholine. It is a metabolite of the nematode Caenorhabditis elegans. It has a role as a Caenorhabditis elegans metabolite. It derives from a 15-methylhexadecasphing-4-enine and an octadecanoic acid.
Result: CCCCCCCCCCCCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CCCCCCCCCC(C)C
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[(E,2S,3R)-3-hydroxy-15-methyl-2-(octadecanoylamino)hexadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is a sphingomyelin obtained by formal condensation of the carboxy group of octadecanoic acid with the amino group of 15-methylhexadecasphingosine-1-phosphocholine. It is a metabolite of the nematode Caenorhabditis elegans. It has a role as a Caenorhabditis elegans metabolite. It derives from a 15-methylhexadecasphing-4-enine and an octadecanoic acid.