Problem statement: Answer the multiple choice question.
Query: Which drug has a -4.977\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a.) CCOC(=O)C(C(=O)OCC)c1cc(Br)c2noc3c2c1C(=O)c1ccccc1-3
b.) CCOC(=O)CCCC(=O)N1CCOCCOCCOCC1
c.) O=[N+]([O-])c1cccc2c(Cl)ccnc12
Answer: b. CCOC(=O)CCCC(=O)N1CCOCCOCCOCC1
{#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#}
ethyl 5-oxo-5-(1,4,7-trioxa-10-azacyclododec-10-yl)pentanoate