Task: Answer the multiple-choice question.
Query: Which compound exhibits a -8.396\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) COc1ccc(-c2nnc(-c3cccs3)o2)cc1OC
b.) CC1CCN(C(=O)C2CCN(S(=O)(=O)c3cnc[nH]3)CC2)CC1
Answer: a. COc1ccc(-c2nnc(-c3cccs3)o2)cc1OC
{#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#}
COc1ccc(-c2nnc(-c3cccs3)o2)cc1OC
COc1ccc(-c2nnc(-c3cccs3)o2)cc1OC
2-(3,4-dimethoxyphenyl)-5-thiophen-2-yl-1,3,4-oxadiazole