Task: Answer the MCQ question.
Query: Which drug exhibits a 2.458\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) COc1ccc2[nH]c(C)c(C(=O)CN3CCc4cc(OC)c(OC)cc4C3)c2c1
b) CCC1CCC2(CC1)NC(=S)N(c1ccccc1)N2
Answer: b. CCC1CCC2(CC1)NC(=S)N(c1ccccc1)N2
{#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#}
CCC1CCC2(CC1)NC(=S)N(c1ccccc1)N2
CCC1CCC2(CC1)NC(=S)N(c1ccccc1)N2
8-ethyl-2-phenyl-1,2,4-triazaspiro[4.5]decane-3-thione