Task: Answer the multiple-choice question.
Question: Which compound has a 1.255\% 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: O=C(NC(=S)NCc1ccco1)c1ccccc1[N+](=O)[O-]
b: COC(=O)c1cc(C(=O)OCC(=O)N2c3ccccc3NC(=O)C2(C)C)cc([N+](=O)[O-])c1
c: CCOC(=O)C1(CCOc2ccccc2)CCN(Cc2ccc(C(=O)OC)cc2)CC1
d: NC(=O)c1cccc2ccccc12
Answer: b. COC(=O)c1cc(C(=O)OCC(=O)N2c3ccccc3NC(=O)C2(C)C)cc([N+](=O)[O-])c1
{#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#}
COC(=O)c1cc(C(=O)OCC(=O)N2c3ccccc3NC(=O)C2(C)C)cc([N+](=O)[O-])c1
COC(=O)c1cc(C(=O)OCC(=O)N2c3ccccc3NC(=O)C2(C)C)cc([N+](=O)[O-])c1
3-O-[2-(2,2-dimethyl-3-oxo-4H-quinoxalin-1-yl)-2-oxoethyl] 1-O-methyl 5-nitrobenzene-1,3-dicarboxylate