Task: Answer the MCQ question.
Query: Which compound exhibits a -18.899\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CCCN(Cc1nnc(-c2ccccc2Cl)o1)C(=O)c1ccc(C)c(S(=O)(=O)N2CCOCC2)c1
b CCOc1ccccc1OCC(=O)Nc1cc(S(=O)(=O)N2CCCCC2)ccc1N1CCN(CC)CC1
Answer: b. CCOc1ccccc1OCC(=O)Nc1cc(S(=O)(=O)N2CCCCC2)ccc1N1CCN(CC)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#}
CCOc1ccccc1OCC(=O)Nc1cc(S(=O)(=O)N2CCCCC2)ccc1N1CCN(CC)CC1
CCOc1ccccc1OCC(=O)Nc1cc(S(=O)(=O)N2CCCCC2)ccc1N1CCN(CC)CC1
2-(2-ethoxyphenoxy)-N-[2-(4-ethylpiperazin-1-yl)-5-piperidin-1-ylsulfonylphenyl]acetamide