Task: Answer the multiple choice question.
Query: Which compound exhibits a -4.421\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. Cc1cccc(C2N=C(N)Nc3nc4ccccc4n32)c1
b. COC(=O)c1sc(NC(=O)COc2ccccc2C)nc1C
c. O=C(c1ccco1)N1CCN(C(=O)C2CCCN(S(=O)(=O)c3cccc4nsnc34)C2)CC1
Answer: b. COC(=O)c1sc(NC(=O)COc2ccccc2C)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)COc2ccccc2C)nc1C
COC(=O)c1sc(NC(=O)COc2ccccc2C)nc1C
methyl 4-methyl-2-[[2-(2-methylphenoxy)acetyl]amino]-1,3-thiazole-5-carboxylate