Task: Answer the MCQ question.
Query: Which compound exhibits a 2.241\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. CCN1C(=O)c2ccc(C(=O)Nc3cccc(C(=O)O)c3)cc2C1=O
b. CN1CCN(c2ccccc2NC(=O)c2ccc(-c3ccc(Br)cc3)o2)CC1
c. COc1ccc(CCNC2=C(Cl)C(=O)N(CCc3ccccc3)C2=O)cc1OC
Answer: b. CN1CCN(c2ccccc2NC(=O)c2ccc(-c3ccc(Br)cc3)o2)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#}
CN1CCN(c2ccccc2NC(=O)c2ccc(-c3ccc(Br)cc3)o2)CC1
CN1CCN(c2ccccc2NC(=O)c2ccc(-c3ccc(Br)cc3)o2)CC1
5-(4-bromophenyl)-N-[2-(4-methylpiperazin-1-yl)phenyl]furan-2-carboxamide