Task: Answer the multiple-choice question.
Query: Which compound exhibits a -1.143\% 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(CC1OC(=O)c2ccccc21)Nc1cc(Cl)ccc1N1CCCC1
(b) O=C(C(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1)c1cn(CC(=O)N2CCOCC2)c2ccccc12
(c) COCCn1c(SCC#N)nnc1-c1ccccc1
(d) Cc1ccc(N2C(=O)CC(N3CCN/C3=C3\CC/C(=C\c4ccccc4)C3=O)C2=O)cc1
Answer: b. O=C(C(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1)c1cn(CC(=O)N2CCOCC2)c2ccccc12
{#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=C(C(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1)c1cn(CC(=O)N2CCOCC2)c2ccccc12
O=C(C(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1)c1cn(CC(=O)N2CCOCC2)c2ccccc12
1-[1-(2-morpholin-4-yl-2-oxoethyl)indol-3-yl]-2-[4-(4-nitrophenyl)piperazin-1-yl]ethane-1,2-dione