Task: Answer the MCQ question.
Question: Which drug has a 12.947\% 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 additional words.
Options:
a. CN1/C(=C\C(=O)COC(=O)c2ccc(O)cc2)C(C)(C)c2ccccc21
b. O=C(Cn1c(NCCO)nc2ccccc21)c1ccccc1
c. COc1ccc(/C=C/C(=O)c2ccccc2)cc1Cn1nnc2ccccc21
d. O=C(c1coc(=O)c(Br)c1)N1CCCc2ccccc21
Answer: b. O=C(Cn1c(NCCO)nc2ccccc21)c1ccccc1
{#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(Cn1c(NCCO)nc2ccccc21)c1ccccc1
O=C(Cn1c(NCCO)nc2ccccc21)c1ccccc1
2-[2-(2-hydroxyethylamino)benzimidazol-1-yl]-1-phenylethanone