Task: Answer the multiple-choice question.
Question: Which compound exhibits a 19.787\% 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) O=C1C(C2=NC(c3ccccn3)C3C(=O)N(c4ccc(OC(F)(F)F)cc4)C(=O)C23)=C(O)c2ccccc21
(b) CCOC(=O)CNC(=S)N1CC2C[C@@H](C1)Cn1c2cccc1=O
Answer: b. CCOC(=O)CNC(=S)N1CC2C[C@@H](C1)Cn1c2cccc1=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#}
CCOC(=O)CNC(=S)N1CC2C[C@@H](C1)Cn1c2cccc1=O
CCOC(=O)CNC(=S)N1CC2C[C@@H](C1)Cn1c2cccc1=O
ethyl 2-[[(9R)-6-oxo-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-diene-11-carbothioyl]amino]acetate