Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 15.842\% 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: COc1cc(C(=O)CCC(=O)O)c(OC)cc1C
b: O=c1cc(-c2ccco2)nc(-c2cccs2)o1
Answer: b. O=c1cc(-c2ccco2)nc(-c2cccs2)o1
{#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#}
4-(furan-2-yl)-2-thiophen-2-yl-1,3-oxazin-6-one