Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 5.390\% human ether-à-go-go related gene (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=C(CCNc1ccc(Cc2ccncc2)cc1)c1cccc([N+](=O)[O-])c1
b: Cc1ccc(NC2=NCCCCC2)cc1C.Cl
c: CCOc1ccc(S(=O)(=O)Nc2ccc(C(=O)N3CC(C)OC(C)C3)cc2)cc1
d: COc1ccc(Nc2nc3c(c(=O)n(C)c(=O)n3C)n2CCO)cc1
Answer: a. O=C(CCNc1ccc(Cc2ccncc2)cc1)c1cccc([N+](=O)[O-])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#}
O=C(CCNc1ccc(Cc2ccncc2)cc1)c1cccc([N+](=O)[O-])c1
O=C(CCNc1ccc(Cc2ccncc2)cc1)c1cccc([N+](=O)[O-])c1
oxido-oxo-[3-[3-[4-(pyridin-4-ylmethyl)anilino]propanoyl]phenyl]azanium