Task: Answer the multiple choice question.
Query: Which drug exhibits a 13.658\% 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.) CCCCS(=O)(=O)c1sc2nc3c(cc2c1N)CCCC3
b.) CC1=C(C#N)C(NC(=O)C2CC2)(C(F)(F)F)C(=O)N1
Answer: a. CCCCS(=O)(=O)c1sc2nc3c(cc2c1N)CCCC3
{#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#}
CCCCS(=O)(=O)c1sc2nc3c(cc2c1N)CCCC3
CCCCS(=O)(=O)c1sc2nc3c(cc2c1N)CCCC3
2-butylsulfonyl-5,6,7,8-tetrahydrothieno[2,3-b]quinolin-3-amine