Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 3.644\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CN1CCCN(C(=O)COc2ccccc2Br)CC1
b COc1cccc(NC(=O)c2ccnc(N3CCC(C(=O)NCc4ccccc4OC)CC3)c2)c1
Answer: a. CN1CCCN(C(=O)COc2ccccc2Br)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#}
CN1CCCN(C(=O)COc2ccccc2Br)CC1
CN1CCCN(C(=O)COc2ccccc2Br)CC1
2-(2-bromophenoxy)-1-(4-methyl-1,4-diazepan-1-yl)ethanone