Task: Answer the MCQ question.
Question: Which drug has a 15.125\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C1c2ccccc2C(=O)N1CCOc1ccccc1Br
[b] N=c1c(C(=O)NCc2ccco2)cc2c(=O)n3ccccc3nc2n1CCc1ccccc1
[c] CC(C)OCCCn1c(SC(C)C(=O)NC2CC2)nc2ccccc2c1=O
[d] Clc1ccc(COn2c(-c3ccc(Cl)cc3Cl)nc3ncccc32)cc1
Answer: a. O=C1c2ccccc2C(=O)N1CCOc1ccccc1Br
{#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=C1c2ccccc2C(=O)N1CCOc1ccccc1Br
O=C1c2ccccc2C(=O)N1CCOc1ccccc1Br
2-[2-(2-bromophenoxy)ethyl]isoindole-1,3-dione