Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 3.663\% 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] Cc1cc(NC(=O)CCC(=O)N(CC(=O)NCC2CCCO2)c2cccc(F)c2)no1
[b] CCn1c(=O)c2sccc2n(Cc2cccc(C)c2)c1=O
Answer: b. CCn1c(=O)c2sccc2n(Cc2cccc(C)c2)c1=O
{#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#}
CCn1c(=O)c2sccc2n(Cc2cccc(C)c2)c1=O
CCn1c(=O)c2sccc2n(Cc2cccc(C)c2)c1=O
3-ethyl-1-[(3-methylphenyl)methyl]thieno[3,2-d]pyrimidine-2,4-dione