Problem statement: Answer the multiple choice question.
Query: Which compound has a 2.561\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CSc1ccccc1C(=O)N=c1sccn1C
b. CCCCNC(=O)Cn1c2c(c(-c3ccccc3Cl)cc1=O)CCC2
Answer: b. CCCCNC(=O)Cn1c2c(c(-c3ccccc3Cl)cc1=O)CCC2
{#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#}
CCCCNC(=O)Cn1c2c(c(-c3ccccc3Cl)cc1=O)CCC2
CCCCNC(=O)Cn1c2c(c(-c3ccccc3Cl)cc1=O)CCC2
N-butyl-2-[4-(2-chlorophenyl)-2-oxo-6,7-dihydro-5H-cyclopenta[b]pyridin-1-yl]acetamide