Task: Answer the multiple-choice question.
Query: Which compound has a 6.673\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) COc1cc(CN2CCNC(=O)C2CC(=O)N2CCc3ccccc3C2)cc(OC)c1
b) Brc1cnc(N2CCCCC2)nc1N1CCOCC1
Answer: b. Brc1cnc(N2CCCCC2)nc1N1CCOCC1
{#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#}
Brc1cnc(N2CCCCC2)nc1N1CCOCC1
Brc1cnc(N2CCCCC2)nc1N1CCOCC1
4-(5-bromo-2-piperidin-1-ylpyrimidin-4-yl)morpholine