Task: Answer the multiple-choice question.
Question: Which compound has a 5.104\% 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] CCCCN(CCCC)S(=O)(=O)c1ccc(C(=O)Nc2nnc(CSC)o2)cc1
[b] C=CCN1C=Nc2cccc3cccc1c23
Answer: b. C=CCN1C=Nc2cccc3cccc1c23
{#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#}
C=CCN1C=Nc2cccc3cccc1c23
C=CCN1C=Nc2cccc3cccc1c23
[C][=C][C][N][C][=N][C][=C][C][=C][C][=C][C][=C][C][Ring1][N][=C][Ring1][#Branch2][Ring1][=Branch1]
1-prop-2-enylperimidine