Task: Answer the multiple-choice question.
Question: Which drug exhibits a 7.944\% 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. Cc1ccc(NC(=O)CN(C)CC(=O)Nc2ccc(N3CCOCC3)cc2)c(C)c1
b. CCOC(=O)CCc1c(C)c2ccc(OCc3cc([N+](=O)[O-])ccc3OC)c(C)c2oc1=O
Answer: b. CCOC(=O)CCc1c(C)c2ccc(OCc3cc([N+](=O)[O-])ccc3OC)c(C)c2oc1=O
{#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#}
CCOC(=O)CCc1c(C)c2ccc(OCc3cc([N+](=O)[O-])ccc3OC)c(C)c2oc1=O
CCOC(=O)CCc1c(C)c2ccc(OCc3cc([N+](=O)[O-])ccc3OC)c(C)c2oc1=O
ethyl 3-[7-[(2-methoxy-5-nitrophenyl)methoxy]-4,8-dimethyl-2-oxochromen-3-yl]propanoate