Task: Answer the multiple choice question.
Query: Which drug exhibits a -0.539\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a.) CCOC(=O)c1sc(NC(=O)c2ccc(Cl)s2)cc1C
b.) Cc1ccc(C(=O)COC(=O)C2CC3CCCC(C2)C3=O)cc1[N+](=O)[O-]
c.) CCCCN(C(=O)CN1CC(C)OC(C)C1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
d.) Cc1ccc(C(OCC(O)CNC(C)c2ccccc2)c2ccccc2)cc1
e.) NC(=O)CC(NC(=O)c1ccc(Br)cc1)c1ccc(NC2CCCCCC2)c([N+](=O)[O-])c1
Answer: a. CCOC(=O)c1sc(NC(=O)c2ccc(Cl)s2)cc1C
{#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)c1sc(NC(=O)c2ccc(Cl)s2)cc1C
CCOC(=O)c1sc(NC(=O)c2ccc(Cl)s2)cc1C
ethyl 5-[(5-chlorothiophene-2-carbonyl)amino]-3-methylthiophene-2-carboxylate