Task: Answer the MCQ question.
Query: Which compound has a 12.686\% 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=C(Cc1ccccc1)NC(=S)Nc1cc(C(F)(F)F)ccc1Cl
b CCc1nc(SCC(=O)c2cccs2)c2oc3ccccc3c2n1
c CCC(C)N1CCN(C(=O)c2cccs2)CC1.O=C(O)C(=O)O
d CCOC(=O)c1sc(=NC(=O)/C=C/c2cccs2)n(C)c1C
Answer: b. CCc1nc(SCC(=O)c2cccs2)c2oc3ccccc3c2n1
{#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#}
CCc1nc(SCC(=O)c2cccs2)c2oc3ccccc3c2n1
CCc1nc(SCC(=O)c2cccs2)c2oc3ccccc3c2n1
2-[(2-ethyl-[1]benzofuro[3,2-d]pyrimidin-4-yl)sulfanyl]-1-thiophen-2-ylethanone