Task: Answer the multiple-choice question.
Question: Which compound exhibits a -6.321\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=[N+]([O-])c1ccc(N2CCN(Cc3ccccc3)CC2)s1
[b] CC1CCN(C(=O)C2CCN(S(=O)(=O)c3cc(Cl)ccc3Cl)CC2)CC1
[c] CCN(CC)S(=O)(=O)c1ccc(C(=O)NCc2ccc3[nH]c4c(c3c2)CCCC4)cc1
Answer: a. O=[N+]([O-])c1ccc(N2CCN(Cc3ccccc3)CC2)s1
{#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=[N+]([O-])c1ccc(N2CCN(Cc3ccccc3)CC2)s1
O=[N+]([O-])c1ccc(N2CCN(Cc3ccccc3)CC2)s1
1-benzyl-4-(5-nitrothiophen-2-yl)piperazine