Task: Answer the multiple-choice question.
Query: Which compound exhibits a 20.108\% 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 additional words.
Options:
a. C=CCOC(=O)C1=C(C)Nc2nnnn2C1c1cccc(OC)c1OC
b. COC(=O)C1C2C=CC3(CN(CC4CCCO4)C(=O)C13)O2
Answer: b. COC(=O)C1C2C=CC3(CN(CC4CCCO4)C(=O)C13)O2
{#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#}
COC(=O)C1C2C=CC3(CN(CC4CCCO4)C(=O)C13)O2
COC(=O)C1C2C=CC3(CN(CC4CCCO4)C(=O)C13)O2
methyl 4-oxo-3-(oxolan-2-ylmethyl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylate