Task: Answer the multiple choice question.
Question: Which drug exhibits a 3.978\% 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 other words.
Options:
a CCOC(=O)c1sc(NC(=O)CSc2nccc(C)n2)nc1C
b Cn1c(=O)c(-c2ccccc2)nn2c3ccccc3nc12
Answer: a. CCOC(=O)c1sc(NC(=O)CSc2nccc(C)n2)nc1C
{#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)c1sc(NC(=O)CSc2nccc(C)n2)nc1C
CCOC(=O)c1sc(NC(=O)CSc2nccc(C)n2)nc1C
ethyl 4-methyl-2-[[2-(4-methylpyrimidin-2-yl)sulfanylacetyl]amino]-1,3-thiazole-5-carboxylate