Task: Answer the MCQ question.
Question: Which drug has a 3.873\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. CCN1CCN(C(=O)CN2C(=O)c3cccc4cccc2c34)CC1
b. CN(C)c1ccc(N=Nc2ccc(S(=O)(=O)[O-])cc2)c2ccccc12.[Na+]
c. CC1CCC(NC(=O)CN2C(=O)COc3ccc(S(=O)(=O)N4CCCC4)cc32)CC1
Answer: a. CCN1CCN(C(=O)CN2C(=O)c3cccc4cccc2c34)CC1
{#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#}
CCN1CCN(C(=O)CN2C(=O)c3cccc4cccc2c34)CC1
CCN1CCN(C(=O)CN2C(=O)c3cccc4cccc2c34)CC1
1-[2-(4-ethylpiperazin-1-yl)-2-oxoethyl]benzo[cd]indol-2-one