Task: Please give me a molecule SMILES based on the description below.
Description: A molecule with a drug half life time in humans after IV administration of approximately 4.900 hours.
Result: Cn1c(=O)c2c(ncn2C)n(C)c1=O
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: A molecule with a {half_life_duration__names__noun} of approximately {half_life_duration#} {half_life_duration__units}.
Result: {SMILES#}
1,3,7-trimethylpurine-2,6-dione