Task: Answer the multiple-choice question.
Question: Which drug has a 13.900\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) CCOC(=O)c1sc2c(c1C)c(=O)c(C(=O)OCC)cn2CC
(b) COc1cc2c(cc1OC)C(C)N(S(=O)(=O)c1cn(C)c(C)n1)CC2
(c) Cc1cccc(-n2c(O)c(C=NC34CN5CN(CN(C5)C3)C4)c(=O)[nH]c2=O)c1
Answer: a. CCOC(=O)c1sc2c(c1C)c(=O)c(C(=O)OCC)cn2CC
{#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#}
CCOC(=O)c1sc2c(c1C)c(=O)c(C(=O)OCC)cn2CC
CCOC(=O)c1sc2c(c1C)c(=O)c(C(=O)OCC)cn2CC
diethyl 7-ethyl-3-methyl-4-oxothieno[2,3-b]pyridine-2,5-dicarboxylate