Task: Answer the MCQ question.
Question: Which compound exhibits a -4.538\% 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) CCOCCCNC(=O)CCCOc1ccccc1
(b) CCC(C)C(=O)Nc1cc([N+](=O)[O-])ccc1Cl
Answer: a. CCOCCCNC(=O)CCCOc1ccccc1
{#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#}
CCOCCCNC(=O)CCCOc1ccccc1
CCOCCCNC(=O)CCCOc1ccccc1
[C][C][O][C][C][C][N][C][=Branch1][C][=O][C][C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1]
N-(3-ethoxypropyl)-4-phenoxybutanamide