Problem statement: Answer the multiple-choice question.
Query: Which drug has a 6.853\% 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: CCOC(=O)c1nc(NNC(C)=O)sc1C
b: COCCN(CCOC)C(=O)c1ccc(NS(=O)(=O)c2ccc3c(c2)OCCO3)cc1
Answer: a. CCOC(=O)c1nc(NNC(C)=O)sc1C
{#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)c1nc(NNC(C)=O)sc1C
CCOC(=O)c1nc(NNC(C)=O)sc1C
ethyl 2-(2-acetylhydrazinyl)-5-methyl-1,3-thiazole-4-carboxylate