Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 20.948\% 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.) CCc1nc(N2CCCCC2C)c2oc3ccccc3c2n1.Cl
b.) COc1ccccc1C(=O)Nc1ccon1
Answer: a. CCc1nc(N2CCCCC2C)c2oc3ccccc3c2n1.Cl
{#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#}
CCc1nc(N2CCCCC2C)c2oc3ccccc3c2n1.Cl
CCc1nc(N2CCCCC2C)c2oc3ccccc3c2n1.Cl
2-ethyl-4-(2-methylpiperidin-1-yl)-[1]benzofuro[3,2-d]pyrimidine;hydrochloride