Task: Answer the MCQ question.
Question: Which drug exhibits a 4.386\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CC(=O)c1c(C)[nH]c(C(=O)OCc2cc(=O)n3cc(Br)ccc3n2)c1C
[b] Cc1c(/C=N/NC(=O)C(C)(C)Oc2ccc(Cl)cc2)cnn1C
[c] CCCS(=O)(=O)N1CCC(C(=O)NCCCN2CCCC2=O)CC1
[d] Cc1ccc(OCCCCN2CCC(C)CC2)cc1.O=C(O)C(=O)O
Answer: a. CC(=O)c1c(C)[nH]c(C(=O)OCc2cc(=O)n3cc(Br)ccc3n2)c1C
{#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#}
CC(=O)c1c(C)[nH]c(C(=O)OCc2cc(=O)n3cc(Br)ccc3n2)c1C
CC(=O)c1c(C)[nH]c(C(=O)OCc2cc(=O)n3cc(Br)ccc3n2)c1C
(7-bromo-4-oxopyrido[1,2-a]pyrimidin-2-yl)methyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate