User: I'm looking for the SMILES of a molecule with a half life in humans after IV administration value close to 1.900 hours.
Assistant: This molecule has a half life in humans after IV administration value of approximately 1.900 hours: COC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1c1ccccc1[N+](=O)[O-]
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule with a {half_life_duration__names__noun} value close to {half_life_duration#} {half_life_duration__units}.
Assistant: This molecule has a {half_life_duration__names__noun} value of approximately {half_life_duration#} {half_life_duration__units}: {SMILES#}
dimethyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate