Task: Answer the multiple choice question.
Question: Which compound exhibits a 0.998\% 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: CC1(C)CC(=O)c2c(nn(-c3ccccc3)c2-c2ccncc2)C1
b: COc1ccc(Cl)cc1C(=O)NCC#N
c: CC(C)C(=O)c1ccc(O)c(O)c1
d: O=C(Cn1cnc2ccccc21)c1ccc(Br)cc1
e: CCCCOc1ccc(CSC(CC(=O)O)C(=O)O)cc1
Answer: b. COc1ccc(Cl)cc1C(=O)NCC#N
{#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#}
COc1ccc(Cl)cc1C(=O)NCC#N
COc1ccc(Cl)cc1C(=O)NCC#N
5-chloro-N-(cyanomethyl)-2-methoxybenzamide