User: I'm looking for the SMILES of a molecule with a half life in humans after IV administration value close to 0.420 hours.
Assistant: This molecule has a half life in humans after IV administration value of approximately 0.420 hours: COc1ccc(C[C@@H]2c3cc(OC)c(OC)cc3CC[N@+]2(C)CCC(=O)OCCCCCOC(=O)CC[N@@+]2(C)CCc3cc(OC)c(OC)cc3[C@H]2Cc2ccc(OC)c(OC)c2)cc1OC
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#}
5-[3-[(1R,2R)-1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-2-ium-2-yl]propanoyloxy]pentyl 3-[(1R,2R)-1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-2-ium-2-yl]propanoate