Task: Answer the multiple-choice question.
Question: Which drug exhibits a 5.184\% 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] COc1ccc(CN2CCN(C(=O)c3cccc4ccccc34)CC2)c(OC)c1OC.O=C(O)C(=O)O
[b] COC(=O)c1sccc1NC(=O)CNC(=O)c1ccccc1
[c] CC(C)Cn1c(=O)c(C(=O)NCc2ccccn2)c(O)c2ccccc21
[d] NC(=O)C1CCCNC1
Answer: b. COC(=O)c1sccc1NC(=O)CNC(=O)c1ccccc1
{#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)c1sccc1NC(=O)CNC(=O)c1ccccc1
COC(=O)c1sccc1NC(=O)CNC(=O)c1ccccc1
methyl 3-[(2-benzamidoacetyl)amino]thiophene-2-carboxylate