Problem statement: Answer the multiple choice question.
Query: Which drug has a -21.214\% 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: Cc1ccc2c(C)nc(N/C(N)=N/S(=O)(=O)c3ccc([N+](=O)[O-])cc3)nc2c1
b: CCOC(=O)C1(CCc2ccccc2)CCN(C(=O)C2CCOCC2)CC1
Answer: b. CCOC(=O)C1(CCc2ccccc2)CCN(C(=O)C2CCOCC2)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#}
CCOC(=O)C1(CCc2ccccc2)CCN(C(=O)C2CCOCC2)CC1
CCOC(=O)C1(CCc2ccccc2)CCN(C(=O)C2CCOCC2)CC1
ethyl 1-(oxane-4-carbonyl)-4-(2-phenylethyl)piperidine-4-carboxylate