Task: Answer the multiple choice question.
Question: Which compound has a 4.214\% 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) O=c1c(Cl)c(NCc2ccc(F)cc2Cl)cnn1C12CC3CC(CC(C3)C1)C2
b) O=C(Cc1ccccc1)N1CCN(C(=O)c2cccs2)CC1
c) O=C(CCNC(=O)C1CCN(S(=O)(=O)c2ccccc2)CC1)Nc1ccccc1
d) CC(OC(=O)c1cccs1)C(=O)NCc1ccc2c(c1)OCO2
Answer: b. O=C(Cc1ccccc1)N1CCN(C(=O)c2cccs2)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(Cc1ccccc1)N1CCN(C(=O)c2cccs2)CC1
O=C(Cc1ccccc1)N1CCN(C(=O)c2cccs2)CC1
2-phenyl-1-[4-(thiophene-2-carbonyl)piperazin-1-yl]ethanone