User: I want to create a SMILES.
Assistant: This sounds very exciting. Should it be a special molecule?
User: Yes, the molecule should have a half life time in humans after IV administration value close to 5.900 hours.
Assistant: Understood, this SMILES has a half life time in humans after IV administration value of approximately 5.900 hours: CN1C(=O)[C@H](O)C[C@H]1c1cccnc1
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#}
(3R,5S)-3-hydroxy-1-methyl-5-pyridin-3-ylpyrrolidin-2-one