Task: Answer the multiple-choice question.
Question: Which compound has a 1.536\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C1C2C3CCC(C3)C2C(=O)N1CNc1ccccc1
[b] CCC(CC)C(=O)Nc1nnc(S(=O)(=O)N2CCCCCC2)s1
[c] Cc1cnn(C(=S)NCCc2ccccc2)c1
[d] CC(=O)Nc1nc(C)c(CCCOc2ccc([N+](=O)[O-])cc2)c(=O)[nH]1
Answer: a. O=C1C2C3CCC(C3)C2C(=O)N1CNc1ccccc1
{#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=C1C2C3CCC(C3)C2C(=O)N1CNc1ccccc1
O=C1C2C3CCC(C3)C2C(=O)N1CNc1ccccc1
4-(anilinomethyl)-4-azatricyclo[5.2.1.02,6]decane-3,5-dione