Task: Answer the multiple choice question.
Question: Which drug has a 2.727\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=[N+]([O-])c1ccc(S(=O)(=O)NCC(c2cccnc2)N2CCc3ccccc3C2)cc1
b CCc1c(C)nc2ncnn2c1NCc1cccs1
Answer: a. O=[N+]([O-])c1ccc(S(=O)(=O)NCC(c2cccnc2)N2CCc3ccccc3C2)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=[N+]([O-])c1ccc(S(=O)(=O)NCC(c2cccnc2)N2CCc3ccccc3C2)cc1
O=[N+]([O-])c1ccc(S(=O)(=O)NCC(c2cccnc2)N2CCc3ccccc3C2)cc1
N-[2-(3,4-dihydro-1H-isoquinolin-2-yl)-2-pyridin-3-ylethyl]-4-nitrobenzenesulfonamide