Task: Answer the multiple-choice question.
Question: Which drug exhibits a 21.731% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: O=C1/C(=C\c2cc(Br)cc(Br)c2O)SC(=S)N1Cc1ccccc1
b: CCCCOC(=O)C1=C(C)NC(=O)NC1c1ccc(N(C)C)cc1
c: Cc1sc2c(c1C)CN(C1CC(C)(C)NC(C)(C)C1)CN2C(=O)c1ccco1
d: COC(OC)c1ccnc(-c2ccc(OC(C)=O)cc2)n1
e: CC(=O)c1c(C)[nH]c(C(=O)CSc2nnc(CN3CCCCCC3=O)n2-c2ccccn2)c1C
Answer: b. CCCCOC(=O)C1=C(C)NC(=O)NC1c1ccc(N(C)C)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCOC(=O)C1=C(C)NC(=O)NC1c1ccc(N(C)C)cc1
CCCCOC(=O)C1=C(C)NC(=O)NC1c1ccc(N(C)C)cc1
butyl 4-[4-(dimethylamino)phenyl]-6-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate