Task: Answer the multiple choice question.
Question: Which compound exhibits a 7.481\% 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 other words.
Options:
a: O=S(=O)(Nc1nc2cc3c(cc2nc1Cl)OCCO3)c1ccccc1
b: CCN1C(=O)C(CC(=O)Nc2ccc(OC)cc2)N(CCc2ccc(F)cc2)C1=S
c: NS(=O)(=O)c1ccc(CCNC(=O)COC(=O)c2cc([N+](=O)[O-])ccc2N2CCOCC2)cc1
d: Cc1nc2ccccc2n1CC(=O)OCC(=O)NCCc1ccccc1
Answer: b. CCN1C(=O)C(CC(=O)Nc2ccc(OC)cc2)N(CCc2ccc(F)cc2)C1=S
{#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#}
CCN1C(=O)C(CC(=O)Nc2ccc(OC)cc2)N(CCc2ccc(F)cc2)C1=S
CCN1C(=O)C(CC(=O)Nc2ccc(OC)cc2)N(CCc2ccc(F)cc2)C1=S
2-[1-ethyl-3-[2-(4-fluorophenyl)ethyl]-5-oxo-2-sulfanylideneimidazolidin-4-yl]-N-(4-methoxyphenyl)acetamide