Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 14.497\% 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 other words.
Options:
a Cc1ccc(-n2nnnc2SCC(=O)NNC(=O)c2ccco2)c(C)c1
b CCOc1ccc(Nc2cc(Nc3ccccc3OCC)nc(C=C(C#N)C#N)n2)cc1
c CC1CCC(NC(=O)Cn2ncc3ccccc32)CC1
d CCc1nnc(NC(=O)CSc2nnc(Cc3ccc(OC)cc3)o2)s1
Answer: b. CCOc1ccc(Nc2cc(Nc3ccccc3OCC)nc(C=C(C#N)C#N)n2)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#}
2-[[4-(2-ethoxyanilino)-6-(4-ethoxyanilino)pyrimidin-2-yl]methylidene]propanedinitrile