Task: Answer the multiple-choice question.
Question: Which compound exhibits a -6.184\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) CC12CCC(C(=O)NCc3ccc4c(c3)OCO4)(CC1=O)C2(C)C
b) COc1cc2cc(Br)cc(Br)c2nc1C
c) Cc1cccc(NS(=O)(=O)c2cccc3cccnc23)n1
d) C=CCNC(=O)CN(c1cccc(Br)c1)S(C)(=O)=O
Answer: b. COc1cc2cc(Br)cc(Br)c2nc1C
{#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#}
6,8-dibromo-3-methoxy-2-methylquinoline