Task: Answer the multiple choice question.
Query: Which drug exhibits a 19.024\% 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: NS(=O)(=O)c1ccc(NC(=S)N2CCN(Cc3ccc4c(c3)OCO4)CC2)cc1
b: COCCN(CCOC)C(=O)N1CCOCC1
Answer: b. COCCN(CCOC)C(=O)N1CCOCC1
{#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#}
COCCN(CCOC)C(=O)N1CCOCC1
COCCN(CCOC)C(=O)N1CCOCC1
N,N-bis(2-methoxyethyl)morpholine-4-carboxamide