Task: Answer the MCQ question.
Query: Which compound exhibits a 16.244\% 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. O=C(Oc1c(-c2ccco2)oc2ccccc2c1=O)c1cccnc1
b. CCOC(=O)CN1CC23C=CC(O2)C(C(=O)Nc2ccc(C(C)=O)cc2)C3C1=O
Answer: a. O=C(Oc1c(-c2ccco2)oc2ccccc2c1=O)c1cccnc1
{#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(Oc1c(-c2ccco2)oc2ccccc2c1=O)c1cccnc1
O=C(Oc1c(-c2ccco2)oc2ccccc2c1=O)c1cccnc1
[2-(furan-2-yl)-4-oxochromen-3-yl]pyridine-3-carboxylate