Task: Answer the multiple choice question.
Query: Which compound exhibits a 1.962\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C(NCC1OCCCN1S(=O)(=O)c1cc(F)ccc1F)C(=O)NC1CCCCCC1
b: CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCCNC(=O)c2cccnc2)C1c1cccc([N+](=O)[O-])c1
Answer: b. CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCCNC(=O)c2cccnc2)C1c1cccc([N+](=O)[O-])c1
{#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=C(C)NC(C)=C(C(=O)OCCNC(=O)c2cccnc2)C1c1cccc([N+](=O)[O-])c1
CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCCNC(=O)c2cccnc2)C1c1cccc([N+](=O)[O-])c1
3-O-ethyl 5-O-[2-(pyridine-3-carbonylamino)ethyl] 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate