Task: Answer the multiple-choice question.
Query: Which compound has a 2.497% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CCOC(=O)C1=C(C)NC2=C(C(=O)CC(C)(C)C2)C1c1ccc(N(C)C)cc1
b Cc1nn2c(-c3ccccc3)ccnc2c1Br
Answer: b. Cc1nn2c(-c3ccccc3)ccnc2c1Br
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Cc1nn2c(-c3ccccc3)ccnc2c1Br
Cc1nn2c(-c3ccccc3)ccnc2c1Br
3-bromo-2-methyl-7-phenylpyrazolo[1,5-a]pyrimidine