Task: Answer the multiple-choice question.
Question: Which compound has a -18.492% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCOC(=O)c1sc2nccc(N(C)C)c2c1N=CN(C)C
[b] Cc1[nH]n(-c2cccc(Cl)c2)c(=O)c1/C=N/n1c(C)nc2ccccc2c1=O
[c] Cc1noc(C)c1S(=O)(=O)NCc1ccc(CN(C)C)cc1.Cl
[d] CCOC(=O)/C=C/C(=O)Nc1ccc(S(=O)(=O)N(C)c2ccccc2)cc1
Answer: a. CCOC(=O)c1sc2nccc(N(C)C)c2c1N=CN(C)C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCOC(=O)c1sc2nccc(N(C)C)c2c1N=CN(C)C
CCOC(=O)c1sc2nccc(N(C)C)c2c1N=CN(C)C
ethyl 4-(dimethylamino)-3-(dimethylaminomethylideneamino)thieno[2,3-b]pyridine-2-carboxylate