Problem statement: Answer the multiple-choice question.
Question: Which compound has a 1.893\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCNc1cc(=O)n(C)c(=O)n1C
b. Cc1nc(NC(=O)C2CCCC2)sc1Cc1ccc2c(c1)OCO2
Answer: a. CCNc1cc(=O)n(C)c(=O)n1C
{#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#}
CCNc1cc(=O)n(C)c(=O)n1C
CCNc1cc(=O)n(C)c(=O)n1C
6-(ethylamino)-1,3-dimethylpyrimidine-2,4-dione