Problem statement: Answer the multiple choice question.
Question: Which drug has a 20.543\% 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 additional words.
Options:
a: COC(=O)c1sc(NC(=O)c2ccncc2)nc1C
b: COc1cc2ccccc2cc1C(=O)Nc1cccnc1
c: CCCOc1ccc(C2c3c(oc4cc(C)c(C)cc4c3=O)C(=O)N2CCCN(C)C)cc1
d: Cc1ccc(S(=O)(=O)N2CCCC2C(=O)Nc2nc3ccccc3s2)cc1
Answer: a. COC(=O)c1sc(NC(=O)c2ccncc2)nc1C
{#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)c1sc(NC(=O)c2ccncc2)nc1C
COC(=O)c1sc(NC(=O)c2ccncc2)nc1C
methyl 4-methyl-2-(pyridine-4-carbonylamino)-1,3-thiazole-5-carboxylate