User: I want to come up with a SMILES.
Assistant: This sounds very exciting. Should it be a special molecule?
User: Yes, the molecule should have a drug half life time in humans after IV administration value close to 1.400 hours.
Assistant: Got it, this SMILES has a drug half life time in humans after IV administration value of approximately 1.400 hours: Cc1cn([C@H]2C=C[C@@H](CO)O2)c(=O)[nH]c1=O
User: I want to {#come up with|create|generate!} a {#molecule |!}{SMILES__description}.
Assistant: {#This sounds very exciting. |This sounds very interesting. !}Should it be a special {#molecule|one!}?
User: Yes, the molecule should have a {half_life_duration__names__noun} value close to {half_life_duration#} {half_life_duration__units}.
Assistant: {#Understood|Got it|Ok!}, this {SMILES__description} has a {half_life_duration__names__noun} value of approximately {half_life_duration#} {half_life_duration__units}: {SMILES#}
1-[(2R,5S)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]-5-methylpyrimidine-2,4-dione