Task: Answer the multiple-choice question.
Query: Which compound exhibits a -20.911\% 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. Cc1cccc(N2C(=S)NC3c4ccccc4OC2(C)C3C(=O)N(C)C)c1
b. C#CCNC(=O)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
Answer: b. C#CCNC(=O)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
{#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#}
C#CCNC(=O)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
C#CCNC(=O)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
(2R,4R)-2-[[4-(hydroxymethyl)phenyl]methoxy]-4-(4-oxochromen-3-yl)-N-prop-2-ynyl-3,4-dihydro-2H-pyran-6-carboxamide