Task: Answer the MCQ question.
Query: Which drug has a 16.505\% 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)CSc1nc2c(c(=O)n1-c1ccc(OCC)cc1)SCC2
b CCCCOc1ccc(-c2cn3ccccc3n2)cc1[N+](=O)[O-]
Answer: a. CCOC(=O)CSc1nc2c(c(=O)n1-c1ccc(OCC)cc1)SCC2
{#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)CSc1nc2c(c(=O)n1-c1ccc(OCC)cc1)SCC2
CCOC(=O)CSc1nc2c(c(=O)n1-c1ccc(OCC)cc1)SCC2
ethyl 2-[[3-(4-ethoxyphenyl)-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl]sulfanyl]acetate