Task: Please generate a molecule SMILES based on the description.
Description: The molecule is a nucleobase analogue obtained by addition of an etheno group across positions N2 and 3 of guanine. It is an imidazopurine and a nucleobase analogue. It derives from a guanine.
Result: O=c1[nH]c2nccn2c2nc[nH]c12
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
O=c1[nH]c2nccn2c2nc[nH]c12
3,5-dihydroimidazo[2,1-b]purin-4-one
The molecule is a nucleobase analogue obtained by addition of an etheno group across positions N2 and 3 of guanine. It is an imidazopurine and a nucleobase analogue. It derives from a guanine.