Task: Answer the multiple choice question.
Question: Which drug has a 3.716\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. COc1ccc(-n2nc(C(=O)NCC3CCCO3)c3ccccc3c2=O)cc1
b. O=C(Cn1c(NCCO)nc2ccccc21)N1CCN(Cc2ccccc2)CC1
c. CC1CC(C)CN(CCCNC(=O)CN2C(=O)c3cccnc3Oc3ccccc32)C1
Answer: b. O=C(Cn1c(NCCO)nc2ccccc21)N1CCN(Cc2ccccc2)CC1
{#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)N1CCN(Cc2ccccc2)CC1
O=C(Cn1c(NCCO)nc2ccccc21)N1CCN(Cc2ccccc2)CC1
1-(4-benzylpiperazin-1-yl)-2-[2-(2-hydroxyethylamino)benzimidazol-1-yl]ethanone