Task: Answer the multiple choice question.
Question: Which drug exhibits a 12.427\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: O=C(Cn1cnc2ccc(Br)cc2c1=O)c1cccs1
b: CN1/C(=C\C=N\NC(=O)c2ccccc2Br)C(C)(C)c2ccccc21
c: CCCOc1ccc(C)cc1CN(CCCl)CCCl.Cl
d: CC(=O)NCCNC(=O)CCNC(=O)c1ccc(Cl)cc1
e: CCOC(=O)c1cnc2ccccc2c1NCCO
Answer: a. O=C(Cn1cnc2ccc(Br)cc2c1=O)c1cccs1
{#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#}
6-bromo-3-(2-oxo-2-thiophen-2-ylethyl)quinazolin-4-one