Task: Answer the MCQ question.
Query: Which drug exhibits a 4.248\% 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: O=c1c2c(ncn2C2CCCC2)n(Cc2ccccc2)c(=O)n1CCOc1ccc(Br)cc1
b: Cc1cccc(NC(=S)NNC(=O)CCn2cc(C)cn2)c1
Answer: a. O=c1c2c(ncn2C2CCCC2)n(Cc2ccccc2)c(=O)n1CCOc1ccc(Br)cc1
{#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#}
O=c1c2c(ncn2C2CCCC2)n(Cc2ccccc2)c(=O)n1CCOc1ccc(Br)cc1
O=c1c2c(ncn2C2CCCC2)n(Cc2ccccc2)c(=O)n1CCOc1ccc(Br)cc1
3-benzyl-1-[2-(4-bromophenoxy)ethyl]-7-cyclopentylpurine-2,6-dione