Task: Answer the multiple-choice question.
Query: Which compound exhibits a 7.564\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) CCNC(=O)COc1ccc(Br)cc1Cl
b.) O=c1cc(CN2CCN(c3ccc(F)cc3)CC2)c2cc3c(cc2o1)CCCC3
Answer: a. CCNC(=O)COc1ccc(Br)cc1Cl
{#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#}
2-(4-bromo-2-chlorophenoxy)-N-ethylacetamide