Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 13.018\% 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 COC(=O)c1sc2nc[nH]c(=O)c2c1C
b Nc1nc(SCC(=O)Nc2ncc(C(F)(F)F)cc2Cl)n[nH]1
c CN(CCOC(=O)C1c2ccccc2Oc2ccccc21)C(C)(C)C.Cl
Answer: a. COC(=O)c1sc2nc[nH]c(=O)c2c1C
{#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#}
COC(=O)c1sc2nc[nH]c(=O)c2c1C
COC(=O)c1sc2nc[nH]c(=O)c2c1C
methyl 5-methyl-4-oxo-3H-thieno[2,3-d]pyrimidine-6-carboxylate