Problem statement: Answer the MCQ question.
Query: Which compound exhibits a -2.639\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1ccccc1NC(=O)COC(=O)COc1cccc2c1OC(C)(C)C2
(b) CCCCc1nc2cc(C(=O)N3CCN(c4nc(C)cnc4C)CC3)ccc2o1
Answer: a. COc1ccccc1NC(=O)COC(=O)COc1cccc2c1OC(C)(C)C2
{#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#}
COc1ccccc1NC(=O)COC(=O)COc1cccc2c1OC(C)(C)C2
COc1ccccc1NC(=O)COC(=O)COc1cccc2c1OC(C)(C)C2
[2-(2-methoxyanilino)-2-oxoethyl] 2-[(2,2-dimethyl-3H-1-benzofuran-7-yl)oxy]acetate