Task: Answer the MCQ question.
Question: Which compound has a 6.723\% 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 other words.
Options:
a) Brc1ccc2[nH]ncc2c1
b) CCN(CC)CCNC(=O)c1ccccc1N
c) CCN(CCNC(=O)Nc1ccc(Cl)cc1)c1ccccc1
d) COc1cc2c(cc1OC)CN(Cc1cc(=O)oc3cc(C)c(C)cc13)CC2
Answer: a. Brc1ccc2[nH]ncc2c1
{#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#}
5-bromo-1H-indazole