Task: Answer the multiple-choice question.
Question: Which compound exhibits a 26.559\% 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, b, or c without using any other words.
Options:
a COC(=O)c1cc(-c2cc(OC)ccc2OC)nc2c1c(=O)n(C)c(=O)n2Cc1ccccc1
b O=C(COC(=O)c1ccccc1Br)NC1CCCC1
c COc1ccccc1NC(=O)Cc1csc(N)n1
Answer: b. O=C(COC(=O)c1ccccc1Br)NC1CCCC1
{#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#}
O=C(COC(=O)c1ccccc1Br)NC1CCCC1
O=C(COC(=O)c1ccccc1Br)NC1CCCC1
[2-(cyclopentylamino)-2-oxoethyl] 2-bromobenzoate