Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 3.294\% 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: CC1(C)C/C(=N/Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])C(C)(C)O1
b: CCCC(=O)Nc1nnc(/C=C/c2ccc(OC)cc2)s1
c: CCOC(=O)c1cc(C#N)c(C)nc1N(CC)CC
d: O=C1C2C3CC(C(Br)C3Br)C2C(=O)N1c1ccccn1
Answer: c. CCOC(=O)c1cc(C#N)c(C)nc1N(CC)CC
{#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)c1cc(C#N)c(C)nc1N(CC)CC
CCOC(=O)c1cc(C#N)c(C)nc1N(CC)CC
ethyl 5-cyano-2-(diethylamino)-6-methylpyridine-3-carboxylate