Problem statement: Answer the MCQ question.
Query: Which compound has a 9.967\% 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.) COc1ccccc1CNCC(=O)N1CC(=O)Nc2ccccc21.O=C(O)C(=O)O
b.) CCn1c(NC(=S)Nc2ccccc2)nc2ccccc21
Answer: b. CCn1c(NC(=S)Nc2ccccc2)nc2ccccc21
{#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#}
1-(1-ethylbenzimidazol-2-yl)-3-phenylthiourea