Task: Answer the multiple-choice question.
Query: Which compound exhibits a 0.171\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Cc1ccc(CNC(=O)CCS(=O)(=O)c2ccc(Br)s2)cc1
(b) Nc1nccnc1C(=O)OCC(=O)Nc1cccc(S(=O)(=O)N2CCCCC2)c1
Answer: b. Nc1nccnc1C(=O)OCC(=O)Nc1cccc(S(=O)(=O)N2CCCCC2)c1
{#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#}
Nc1nccnc1C(=O)OCC(=O)Nc1cccc(S(=O)(=O)N2CCCCC2)c1
Nc1nccnc1C(=O)OCC(=O)Nc1cccc(S(=O)(=O)N2CCCCC2)c1
[2-oxo-2-(3-piperidin-1-ylsulfonylanilino)ethyl]3-aminopyrazine-2-carboxylate