Task: Answer the multiple choice question.
Question: Which compound has a 15.301\% 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 additional words.
Options:
(a) O=C(O)c1ccccc1OCCN1CCCC1=O
(b) Cn1c(CCN2CCN(c3ccccn3)CC2)nc2cc(NC(=O)COc3ccccc3)ccc21
Answer: a. O=C(O)c1ccccc1OCCN1CCCC1=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#}
O=C(O)c1ccccc1OCCN1CCCC1=O
O=C(O)c1ccccc1OCCN1CCCC1=O
2-[2-(2-oxopyrrolidin-1-yl)ethoxy]benzoic acid