Task: Answer the multiple-choice question.
Question: Which compound has a 3.370\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a CCOc1ccc(CCNC(=O)CCCN2C(=O)c3ccccc3C2=O)cc1OCC
b CCOC(=O)c1nc2ccccc2nc1C
c COc1ccc(-n2c(COc3ccccc3)n[nH]c2=S)cc1
Answer: b. CCOC(=O)c1nc2ccccc2nc1C
{#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)c1nc2ccccc2nc1C
CCOC(=O)c1nc2ccccc2nc1C
ethyl 3-methylquinoxaline-2-carboxylate