User: I'm searching for the SMILES of a molecule with a half life in humans after IV administration value close to 1.690 hours.
Assistant: This molecule has a half life in humans after IV administration value of approximately 1.690 hours: O=[N+]([O-])O[C@H]1CO[C@H]2[C@@H]1OC[C@H]2O[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#}
[(3S,3aS,6R,6aS)-3-nitrooxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl] nitrate