Task: Answer the MCQ question.
Query: Which compound has a 2.566\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) CCOC(=O)c1cc2cc(-c3c(C(=O)OCC)oc4cc(O)cc(O)c4c3=O)ccc2o1
b) CC(=O)N1CCC(C2=NNC(=O)C2N=Nc2ccc(Cl)cc2)CC1
c) CCN(CC)C(=O)CSc1nc2ccccc2c(=O)n1-c1ccccc1OC
Answer: a. CCOC(=O)c1cc2cc(-c3c(C(=O)OCC)oc4cc(O)cc(O)c4c3=O)ccc2o1
{#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)c1cc2cc(-c3c(C(=O)OCC)oc4cc(O)cc(O)c4c3=O)ccc2o1
CCOC(=O)c1cc2cc(-c3c(C(=O)OCC)oc4cc(O)cc(O)c4c3=O)ccc2o1
ethyl 3-(2-ethoxycarbonyl-1-benzofuran-5-yl)-5,7-dihydroxy-4-oxochromene-2-carboxylate