Task: Answer the MCQ question.
Question: Which compound exhibits a 12.680\% 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. O=C(O)CCC(=O)N1CCOc2ccc(Cl)cc21
b. COc1ccc(CCNC(=O)CC2Nc3ccccc3NC2=O)cc1OC
Answer: b. COc1ccc(CCNC(=O)CC2Nc3ccccc3NC2=O)cc1OC
{#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#}
COc1ccc(CCNC(=O)CC2Nc3ccccc3NC2=O)cc1OC
COc1ccc(CCNC(=O)CC2Nc3ccccc3NC2=O)cc1OC
2-(3-oxo-2,4-dihydro-1H-quinoxalin-2-yl)-N-[2-(4,5-dimethoxyphenyl)ethyl]acetamide