Task: Answer the MCQ question.
Query: Which compound has a 26.803\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCCCSc1nc(O)c(Cc2ccccc2)c(=O)[nH]1
b: Cc1cnc(C(=O)Nc2ccc(S(=O)(=O)NCC(C)C)cc2)cn1
Answer: b. Cc1cnc(C(=O)Nc2ccc(S(=O)(=O)NCC(C)C)cc2)cn1
{#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#}
Cc1cnc(C(=O)Nc2ccc(S(=O)(=O)NCC(C)C)cc2)cn1
Cc1cnc(C(=O)Nc2ccc(S(=O)(=O)NCC(C)C)cc2)cn1
5-methyl-N-[4-(2-methylpropylsulfamoyl)phenyl]pyrazine-2-carboxamide