Task: Answer the multiple-choice question.
Query: Which compound exhibits a 9.990\% 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 other words.
Options:
a: O=S(=O)(c1ccc(Cl)cc1Br)N1CCCCC1
b: Cc1ccc(CN2CC(=O)N3[C@H]4c5cc(Cl)ccc5OC[C@@H]4[C@H](c4ccccc4)[C@]3(C)C2=O)cc1
c: OCCC1CN(CC2CC2)CCN1Cc1ccc(F)c(F)c1
d: CCOC(=O)c1nn(-c2ccc(OCC)cc2)c2nc(CC(C)C)c(C#N)c(=O)n12
Answer: c. OCCC1CN(CC2CC2)CCN1Cc1ccc(F)c(F)c1
{#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#}
OCCC1CN(CC2CC2)CCN1Cc1ccc(F)c(F)c1
OCCC1CN(CC2CC2)CCN1Cc1ccc(F)c(F)c1
2-[4-(cyclopropylmethyl)-1-[(3,4-difluorophenyl)methyl]piperazin-2-yl]ethanol