Task: Answer the MCQ question.
Query: Which compound exhibits a 17.549\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CC1(OC(=O)c2cnc3ccccc3n2)C(=O)C=C2C=C(c3ccc(C#N)cc3)OC=C2C1=O
b: O=C(O)CCC(C(=O)O)n1c(O)c(C2=c3ccccc3=NC2=O)sc1=S
Answer: b. O=C(O)CCC(C(=O)O)n1c(O)c(C2=c3ccccc3=NC2=O)sc1=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#}
O=C(O)CCC(C(=O)O)n1c(O)c(C2=c3ccccc3=NC2=O)sc1=S
O=C(O)CCC(C(=O)O)n1c(O)c(C2=c3ccccc3=NC2=O)sc1=S
2-[4-hydroxy-5-(2-oxoindol-3-yl)-2-sulfanylidene-1,3-thiazol-3-yl]pentanedioic acid