Problem statement: Answer the multiple-choice question.
Query: Which compound has a 0.638\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a CCOC(=O)CC1C(=O)NCCN1C(=O)c1cccc(C(F)(F)F)c1
b CC1(C)CC(NC(=O)Nc2ccc([N+](=O)[O-])cc2)CC(C)(C)N1
c CCOC(=O)c1c(NC(=O)CN2C(=O)NC3(CCCC3)C2=O)sc(C)c1CC
d Fc1cccc(CN2CCN3CCCC3C2C2CCCCC2)c1
Answer: c. CCOC(=O)c1c(NC(=O)CN2C(=O)NC3(CCCC3)C2=O)sc(C)c1CC
{#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)c1c(NC(=O)CN2C(=O)NC3(CCCC3)C2=O)sc(C)c1CC
CCOC(=O)c1c(NC(=O)CN2C(=O)NC3(CCCC3)C2=O)sc(C)c1CC
ethyl 2-[[2-(2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl)acetyl]amino]-4-ethyl-5-methylthiophene-3-carboxylate