Task: Answer the multiple choice question.
Question: Which compound exhibits a 2.550\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CCCn1c(O)c(N=NC(=O)CNC(=O)c2ccncc2)c2ccccc21
b: CCOc1cc(C)c(S(=O)(=O)NC2CC(C)(C)NC(C)(C)C2)cc1C
Answer: a. CCCn1c(O)c(N=NC(=O)CNC(=O)c2ccncc2)c2ccccc21
{#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#}
CCCn1c(O)c(N=NC(=O)CNC(=O)c2ccncc2)c2ccccc21
CCCn1c(O)c(N=NC(=O)CNC(=O)c2ccncc2)c2ccccc21
N-[2-[(2-hydroxy-1-propylindol-3-yl)diazenyl]-2-oxoethyl]pyridine-4-carboxamide