Task: Answer the MCQ question.
Query: Which compound has a -1.552\% 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(CN1CCN(c2ccccc2O)CC1)Nc1ccc2c(c1)CCC2
b: Br.CCn1c2c(c(=N)c3c1CCC3)CCCC2
Answer: a. O=C(CN1CCN(c2ccccc2O)CC1)Nc1ccc2c(c1)CCC2
{#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(CN1CCN(c2ccccc2O)CC1)Nc1ccc2c(c1)CCC2
O=C(CN1CCN(c2ccccc2O)CC1)Nc1ccc2c(c1)CCC2
N-(2,3-dihydro-1H-inden-5-yl)-2-[4-(2-hydroxyphenyl)piperazin-1-yl]acetamide