Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 0.868\% 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] Cc1cccn2c(=O)c3c(nc12)N1CCCCCC1C1(C3)C(=O)N(C)C(=O)N(C)C1=O
[b] CCC(C)NC(=O)N[C@@H](CCSC)C(=O)OC
Answer: b. CCC(C)NC(=O)N[C@@H](CCSC)C(=O)OC
{#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#}
CCC(C)NC(=O)N[C@@H](CCSC)C(=O)OC
CCC(C)NC(=O)N[C@@H](CCSC)C(=O)OC
methyl (2S)-2-(butan-2-ylcarbamoylamino)-4-methylsulfanylbutanoate