Task: Answer the multiple-choice question.
Query: Which compound has a 1.445\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) COCCCN(C(=O)c1cccnc1SC)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
(b) CC1=CC(C)(C)N2C(=O)C3(N=C(N)NC(Nc4ccccc4)=N3)c3cc(C)cc1c32
(c) CC1CCCCC1NC(=O)CN(C)S(=O)(=O)c1ccc2c(c1)c(=O)n(C)c(=O)n2C
Answer: b. CC1=CC(C)(C)N2C(=O)C3(N=C(N)NC(Nc4ccccc4)=N3)c3cc(C)cc1c32
{#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'-amino-6'-anilino-6,9,11,11-tetramethylspiro[1-azatricyclo[6.3.1.04,12]dodeca-4,6,8(12),9-tetraene-3,4'-1H-1,3,5-triazine]-2-one