Task: Answer the multiple choice question.
Question: Which compound has a 16.680\% 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.) COc1ccccc1N1C(=S)NC2CS(=O)(=O)CC21
b.) COc1ccc(NC(=O)CN(C)C(=O)c2cc(CN3C(=O)c4ccccc4C3=O)ccc2OC)cc1
c.) Cn1c(O)c(C=Nc2ccc3c(c2)CCC3)c(=O)n(C)c1=O
d.) COc1ccc(Cc2nnc(-c3cccc(C)c3)o2)cc1OC
Answer: a. COc1ccccc1N1C(=S)NC2CS(=O)(=O)CC21
{#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#}
COc1ccccc1N1C(=S)NC2CS(=O)(=O)CC21
COc1ccccc1N1C(=S)NC2CS(=O)(=O)CC21
3-(2-methoxyphenyl)-5,5-dioxo-3a,4,6,6a-tetrahydro-1H-thieno[3,4-d]imidazole-2-thione