Task: Answer the MCQ question.
Query: Which compound has a 12.808\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CC(C)(O)[C@@H]1[C@@H]2C[C@@]3(CC[C@]4(C)C(CCC5[C@@]6(C)CC[C@H](O)C(C)(C)C6CC[C@]54C)[C@@H]13)C(=O)O2
b: O=C1C=C(Nc2ccc(O)cc2)C(=O)c2ccccc21
c: CCOC(=O)N1CCC(=NNC(N)=O)CC1
d: CCN(CC)S(=O)(=O)c1ccc(NC(=O)C2CCCN(C(=O)c3ccc(Cl)cc3)C2)cc1
Answer: b. O=C1C=C(Nc2ccc(O)cc2)C(=O)c2ccccc21
{#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#}
O=C1C=C(Nc2ccc(O)cc2)C(=O)c2ccccc21
O=C1C=C(Nc2ccc(O)cc2)C(=O)c2ccccc21
2-(4-hydroxyanilino)naphthalene-1,4-dione