Task: Answer the multiple choice question.
Question: Which compound exhibits a 4.510\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CC(C(=O)N1c2ccc(F)cc2CCC1C)N1C(=O)c2ccccc2C1=O
[b] O=C(NCCCCc1ccccc1)Nc1cccc(F)c1
Answer: b. O=C(NCCCCc1ccccc1)Nc1cccc(F)c1
{#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#}
O=C(NCCCCc1ccccc1)Nc1cccc(F)c1
O=C(NCCCCc1ccccc1)Nc1cccc(F)c1
1-(3-fluorophenyl)-3-(4-phenylbutyl)urea