Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 15.506\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1ccc(-n2c(SCC(=O)Nc3sc4c(c3C#N)CCCC4)nnc2-c2ccc(O)cc2)cc1
(b) O=C(O)C1CCN(C(=O)Cc2ccccc2)CC1
Answer: b. O=C(O)C1CCN(C(=O)Cc2ccccc2)CC1
{#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(O)C1CCN(C(=O)Cc2ccccc2)CC1
O=C(O)C1CCN(C(=O)Cc2ccccc2)CC1
1-(2-phenylacetyl)piperidine-4-carboxylicacid