Task: Answer the multiple-choice question.
Query: Which compound exhibits a 18.996\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(CCNC(=O)c2cnc3ccccc3n2)cc1
b. CCCCN(C(=O)c1ccc(-c2ccc(Cl)cc2)o1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
Answer: b. CCCCN(C(=O)c1ccc(-c2ccc(Cl)cc2)o1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
{#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#}
CCCCN(C(=O)c1ccc(-c2ccc(Cl)cc2)o1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
CCCCN(C(=O)c1ccc(-c2ccc(Cl)cc2)o1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
N-[6-amino-1-(2-methylpropyl)-2,4-dioxopyrimidin-5-yl]-N-butyl-5-(4-chlorophenyl)furan-2-carboxamide