Task: Answer the multiple-choice question.
Question: Which compound exhibits a -0.624\% 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) CC1CC(C)CN(CCCNC(=O)C2CCCN(S(=O)(=O)N3CC(C)CC(C)C3)C2)C1
(b) COC(=O)CN1C(=O)C(O)=C(C(C)=O)C1c1ccc([N+](=O)[O-])cc1
Answer: b. COC(=O)CN1C(=O)C(O)=C(C(C)=O)C1c1ccc([N+](=O)[O-])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#}
COC(=O)CN1C(=O)C(O)=C(C(C)=O)C1c1ccc([N+](=O)[O-])cc1
COC(=O)CN1C(=O)C(O)=C(C(C)=O)C1c1ccc([N+](=O)[O-])cc1
methyl 2-[3-acetyl-4-hydroxy-2-(4-nitrophenyl)-5-oxo-2H-pyrrol-1-yl]acetate