Task: Answer the MCQ question.
Query: Which drug has a 5.908\% 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) COc1ccccc1/C=N/n1c(N)c(S(=O)(=O)c2cccs2)c2nc3ccccc3nc21
(b) COc1ccccc1CNC(=O)c1cnccn1
Answer: b. COc1ccccc1CNC(=O)c1cnccn1
{#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#}
COc1ccccc1CNC(=O)c1cnccn1
COc1ccccc1CNC(=O)c1cnccn1
N-[(2-methoxyphenyl)methyl]pyrazine-2-carboxamide