Task: Answer the multiple-choice question.
Question: Which compound exhibits a -3.868\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=CN1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
b) CC(C)(C)OC(=O)N1CCN(C(=O)OCC2c3ccccc3-c3ccccc32)CC1C(=O)O
c) COc1ccc(NC(=O)CN2C(=O)NC3(CC(C)CC(C)(C)C3)C2=O)cc1S(=O)(=O)N1CCCCC1
Answer: a. O=CN1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)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=CN1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
O=CN1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
4-(4-nitrobenzoyl)piperazine-1-carbaldehyde