Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 20.574% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) COCCOC(=O)c1sc2nc[nH]c(=O)c2c1C
(b) Cc1[nH]cc(Br)c(=O)c1Oc1ncc(C(F)(F)F)cc1Cl
(c) CC(C)(C)[C@H]1CCC(=O)N([C@H](CSc2ccccc2)Cc2ccccc2)CC1
(d) CC1(c2ccc(Cl)cc2Cl)NC(=O)N(CC(=O)N2CCN(C(=O)c3ccco3)CC2)C1=O
(e) N#Cc1ccccc1S(=O)(=O)N1CCN(C(=O)[C@@H]2CCCN2C(=O)c2cccs2)CC1
Answer: a. COCCOC(=O)c1sc2nc[nH]c(=O)c2c1C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COCCOC(=O)c1sc2nc[nH]c(=O)c2c1C
COCCOC(=O)c1sc2nc[nH]c(=O)c2c1C
2-methoxyethyl 5-methyl-4-oxo-3H-thieno[2,3-d]pyrimidine-6-carboxylate