Task: Answer the MCQ question.
Query: Which drug exhibits a 5.043\% human ether-à-go-go related gene (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: CCCCc1nnc(NC(=O)C=C(C)C)s1
b: O=C(OCCN1C(=O)c2ccccc2C1=O)c1cccc(OC(F)F)c1
Answer: b. O=C(OCCN1C(=O)c2ccccc2C1=O)c1cccc(OC(F)F)c1
{#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#}
2-(1,3-dioxoisoindol-2-yl)ethyl 3-(difluoromethoxy)benzoate