Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 1.672\% 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] COCc1cc(C)nc(Nc2ccc(C)c(C)c2)c1C#N
[b] CCC(C)[C@H](NC(=O)N1CC(=O)Nc2ccccc21)C(=O)Nc1nccs1
Answer: a. COCc1cc(C)nc(Nc2ccc(C)c(C)c2)c1C#N
{#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#}
COCc1cc(C)nc(Nc2ccc(C)c(C)c2)c1C#N
COCc1cc(C)nc(Nc2ccc(C)c(C)c2)c1C#N
2-(3,4-dimethylanilino)-4-(methoxymethyl)-6-methylpyridine-3-carbonitrile