Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -13.363\% 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] O=C(OCC(=O)c1c[nH]c2ccccc12)c1ccc(Br)o1
[b] NC(CO)(CO)CO.O=C(c1ccccc1)c1ccc2n1CCC2C(=O)O
Answer: a. O=C(OCC(=O)c1c[nH]c2ccccc12)c1ccc(Br)o1
{#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=C(OCC(=O)c1c[nH]c2ccccc12)c1ccc(Br)o1
O=C(OCC(=O)c1c[nH]c2ccccc12)c1ccc(Br)o1
[2-(1H-indol-3-yl)-2-oxoethyl] 5-bromofuran-2-carboxylate