Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 5.428\% 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] CCCCN1C(=O)N(C)C2NC(=O)NC21
[b] O=C1C2CCCCC2C(=O)N1c1nccs1
Answer: b. O=C1C2CCCCC2C(=O)N1c1nccs1
{#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=C1C2CCCCC2C(=O)N1c1nccs1
O=C1C2CCCCC2C(=O)N1c1nccs1
2-(1,3-thiazol-2-yl)-3a,4,5,6,7,7a-hexahydroisoindole-1,3-dione