Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -21.639\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. COc1cc(C2N(c3cc(C)on3)C(=O)C3CCCN32)cc(OC)c1OC
b. O=C(Nc1cccc(-c2cnc3ccccc3n2)c1)c1ccco1
Answer: b. O=C(Nc1cccc(-c2cnc3ccccc3n2)c1)c1ccco1
{#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=C(Nc1cccc(-c2cnc3ccccc3n2)c1)c1ccco1
O=C(Nc1cccc(-c2cnc3ccccc3n2)c1)c1ccco1
N-[3-quinoxalin-2-ylphenyl]furan-2-carboxamide