Task: Answer the multiple choice question.
Question: Which compound exhibits a -4.756\% 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. CCCCn1c(=O)n(C)c(=O)c2c(C(F)(F)F)cc(-c3ccncc3)nc21
b. O=C(NCC(NS(=O)(=O)OCC(Cl)(Cl)Cl)c1ccccc1)C(F)(F)F
c. CCOc1ccc(S(=O)(=O)N(CC)CC(=O)NCc2ccco2)cc1C
d. CC(=O)c1cnc2c(-c3ccccc3)c(C(F)(F)F)nn2c1C
Answer: a. CCCCn1c(=O)n(C)c(=O)c2c(C(F)(F)F)cc(-c3ccncc3)nc21
{#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#}
CCCCn1c(=O)n(C)c(=O)c2c(C(F)(F)F)cc(-c3ccncc3)nc21
CCCCn1c(=O)n(C)c(=O)c2c(C(F)(F)F)cc(-c3ccncc3)nc21
1-butyl-3-methyl-7-pyridin-4-yl-5-(trifluoromethyl)pyrido[2,3-d]pyrimidine-2,4-dione