Task: Answer the multiple choice question.
Query: Which compound exhibits a -0.419\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(O)CCC(=O)Nc1ccc(C(=O)OCC(=O)c2ccc(Cl)cc2)cc1
b: CCOc1ccccc1CN1C(=O)NC(C)(c2ccccc2)C1=O
c: C=CCSc1nnc(NC(=O)c2cccc(S(=O)(=O)N(C)c3ccccc3)c2)s1
Answer: b. CCOc1ccccc1CN1C(=O)NC(C)(c2ccccc2)C1=O
{#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#}
CCOc1ccccc1CN1C(=O)NC(C)(c2ccccc2)C1=O
CCOc1ccccc1CN1C(=O)NC(C)(c2ccccc2)C1=O
3-[(2-ethoxyphenyl)methyl]-5-methyl-5-phenylimidazolidine-2,4-dione