Task: Answer the multiple-choice question.
Question: Which drug has a 2.272\% 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: Cn1nc(-c2ccccc2)c(-c2nc(-c3ccc(Cl)cc3)no2)c1Cl
b: O=C(Nc1ccccc1C(=O)N1CCNCC1)c1ccco1
c: CC1=C(C(=O)OC(C)C)C(c2cccc(F)c2)n2ncnc2N1
d: CCN(CC)S(=O)(=O)c1ccc(C(=O)NCc2ccc3[nH]c4c(c3c2)CCCC4)cc1
Answer: b. O=C(Nc1ccccc1C(=O)N1CCNCC1)c1ccco1
{#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(Nc1ccccc1C(=O)N1CCNCC1)c1ccco1
O=C(Nc1ccccc1C(=O)N1CCNCC1)c1ccco1
N-[2-(piperazine-1-carbonyl)phenyl]furan-2-carboxamide