Task: Answer the multiple-choice question.
Query: Which compound has a 15.418\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCCn1nnnc1SCC(=O)NC1CCCC1
[b] CCOC(=O)c1cc2occc2n1CC(=O)NC1CCCCC1C
[c] COc1ccc(C(C(=O)NC2CCCC2)N(C(=O)c2snc(C(N)=O)c2N)c2ccccc2OC)cc1OC
[d] N#Cc1c(-c2ccccc2)cc(-c2ccccc2)nc1Br
Answer: b. CCOC(=O)c1cc2occc2n1CC(=O)NC1CCCCC1C
{#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#}
CCOC(=O)c1cc2occc2n1CC(=O)NC1CCCCC1C
CCOC(=O)c1cc2occc2n1CC(=O)NC1CCCCC1C
2-(5-ethoxycarbonylfuro[3,2-b]pyrrol-4-yl)-N-(2-methylcyclohexyl)acetamide