Task: Please create a molecule SMILES based on the description below.
Description: A molecule with a drug half life time in humans after IV administration of approximately 1.900 hours.
Result: CC(=O)O[C@H]1C[C@@H]2CC[C@@H]3[C@H](CC[C@@]4(C)[C@H]3C[C@H]([N+]3(C)CCCCC3)[C@@H]4OC(C)=O)[C@@]2(C)C[C@@H]1[N+]1(C)CCCCC1
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: A molecule with a {half_life_duration__names__noun} of approximately {half_life_duration#} {half_life_duration__units}.
Result: {SMILES#}
[(2S,3S,5S,8R,9S,10S,13S,14S,16S,17R)-17-acetyloxy-10,13-dimethyl-2,16-bis(1-methylpiperidin-1-ium-1-yl)-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate