Task: Please create a text description for a molecule based on its representation.
Molecule SMILES: CC(=O)/C=C/c1c(CC[C@H](O)[C@H](O)[C@H](O)CO)[nH]c(=O)[nH]c1=O
Constraint: Answer the question with complete sentences.
Result: The molecule is a nucleobase analogue that is uracil substituted with a (1-deoxy-D-ribityl)methyl group at position 6 and a (1E)-3-oxobut-1-en-1-yl group at position 5; one of 20 modifications to the potent microbial riboflavin-based metabolite antigen 5-(2-oxopropylideneamino)-6-D-ribityl aminouracil (5-OP-RU), an activator of mucosal-associated invariant T (MAIT) cells when presented by the MR1 protein (reported in MED:32123373). It has a role as an epitope. It is a nucleobase analogue and a pyrimidone. It derives from a uracil.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
5-[(E)-3-oxobut-1-enyl]-6-[(3S,4S,5R)-3,4,5,6-tetrahydroxyhexyl]-1H-pyrimidine-2,4-dione
The molecule is a nucleobase analogue that is uracil substituted with a (1-deoxy-D-ribityl)methyl group at position 6 and a (1E)-3-oxobut-1-en-1-yl group at position 5; one of 20 modifications to the potent microbial riboflavin-based metabolite antigen 5-(2-oxopropylideneamino)-6-D-ribityl aminouracil (5-OP-RU), an activator of mucosal-associated invariant T (MAIT) cells when presented by the MR1 protein (reported in MED:32123373). It has a role as an epitope. It is a nucleobase analogue and a pyrimidone. It derives from a uracil.