Task: Please create a description for a molecule.
Molecule SMILES: O=c1c2[nH]cnc2[nH]c2nccn12
Constraint: Answer the question with complete sentences.
Result: The molecule is a nucleobase analogue obtained by addition of an etheno group across positions 1 and N2 of guanine. It is an imidazopurine and a nucleobase analogue. It derives from a guanine.
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#}
1,4-dihydroimidazo[1,2-a]purin-9-one
The molecule is a nucleobase analogue obtained by addition of an etheno group across positions 1 and N2 of guanine. It is an imidazopurine and a nucleobase analogue. It derives from a guanine.