Task: Answer the multiple-choice question.
Question: Which compound has a 2.472\% 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)C1=C(CC)Nc2ccccc2N=C1N
b: O=C(CCc1nnc(C2CCCCC2)o1)NCc1ccc(F)c(F)c1
c: Cc1ccc(N2CC(C(=O)N3CCCCC3)CC2=O)cc1C
d: CCn1c(C)nnc1SCC(=O)Nc1ccc(N2CCOCC2)cc1
Answer: a. CCOC(=O)C1=C(CC)Nc2ccccc2N=C1N
{#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)C1=C(CC)Nc2ccccc2N=C1N
CCOC(=O)C1=C(CC)Nc2ccccc2N=C1N
ethyl 4-amino-2-ethyl-1H-1,5-benzodiazepine-3-carboxylate