Task: Answer the multiple choice question.
Query: Which drug exhibits a -5.395\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a. O=[N+]([O-])c1ccc(C2(O)CN(c3ccccc3)C3=[N+]2CCS3)cc1.[Br-]
b. CCCn1c(=O)c(C(=O)NCc2ccncc2)c(O)c2ccccc21
c. COC(=O)C1=C(C)N(Cc2ccc(C)cc2)C(=O)/C1=C\c1ccc(O)c(OC)c1
d. COc1ccc(CCC(C)N2CCC(Oc3ccc(C(=O)N4CCCC4)cc3)CC2)cc1
e. COc1ccc(S(=O)(=O)N(C)C)cc1NC(=O)c1ccc2c(c1)OCCO2
Answer: b. CCCn1c(=O)c(C(=O)NCc2ccncc2)c(O)c2ccccc21
{#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#}
CCCn1c(=O)c(C(=O)NCc2ccncc2)c(O)c2ccccc21
CCCn1c(=O)c(C(=O)NCc2ccncc2)c(O)c2ccccc21
4-hydroxy-2-oxo-1-propyl-N-(pyridin-4-ylmethyl)quinoline-3-carboxamide