Task: Answer the multiple choice question.
Question: Which compound exhibits a 2.636\% 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) COc1ccccc1N(C)S(=O)(=O)c1ccc(C(=O)OCC(=O)NCc2ccco2)cc1
(b) CCC(C(=O)NCCN1CCN(C)CC1)n1c(C)c2cnn(-c3ccccc3)c(=O)c2c1C
Answer: b. CCC(C(=O)NCCN1CCN(C)CC1)n1c(C)c2cnn(-c3ccccc3)c(=O)c2c1C
{#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#}
CCC(C(=O)NCCN1CCN(C)CC1)n1c(C)c2cnn(-c3ccccc3)c(=O)c2c1C
CCC(C(=O)NCCN1CCN(C)CC1)n1c(C)c2cnn(-c3ccccc3)c(=O)c2c1C
2-(5,7-dimethyl-4-oxo-3-phenylpyrrolo[3,4-d]pyridazin-6-yl)-N-[2-(4-methylpiperazin-1-yl)ethyl]butanamide