Task: Answer the multiple-choice question.
Question: Which compound exhibits a -1.947\% 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: NC(=O)NC(=O)C(c1ccccc1)N1CCN(S(=O)(=O)Cc2ccccc2)CC1
b: COC(=O)C(NC(=O)CCc1nnc2ccc(N3CCC(C)CC3)nn12)C(C)C
c: COC(=O)C1=C(C)N(C)C(=O)NC1c1cc(Cl)cc(Cl)c1OC
d: COc1ccc(Br)c(C(=O)N(C)CC(=O)Nc2ccc(N3CCOCC3)cc2)c1
Answer: c. COC(=O)C1=C(C)N(C)C(=O)NC1c1cc(Cl)cc(Cl)c1OC
{#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)C1=C(C)N(C)C(=O)NC1c1cc(Cl)cc(Cl)c1OC
COC(=O)C1=C(C)N(C)C(=O)NC1c1cc(Cl)cc(Cl)c1OC
methyl 6-(3,5-dichloro-2-methoxyphenyl)-3,4-dimethyl-2-oxo-1,6-dihydropyrimidine-5-carboxylate