Task: Answer the multiple-choice question.
Question: Which drug exhibits a 8.459\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CCCN1C(=O)N(c2cccc(C)c2)C(C)(O)CC1(C)C
b O=C(CCC1CCCN(C(=O)c2ccc3c(c2)OCO3)C1)N1CCN(c2ccccn2)CC1
Answer: a. CCCN1C(=O)N(c2cccc(C)c2)C(C)(O)CC1(C)C
{#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#}
CCCN1C(=O)N(c2cccc(C)c2)C(C)(O)CC1(C)C
CCCN1C(=O)N(c2cccc(C)c2)C(C)(O)CC1(C)C
6-hydroxy-4,4,6-trimethyl-1-(3-methylphenyl)-3-propyl-1,3-diazinan-2-one