Problem statement: Answer the MCQ question.
Query: Which drug has a 21.010\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] N#Cc1cc(C#N)c(SCC(=O)N2CC(=O)Nc3ccccc32)nc1N
[b] O=C(NCc1cccnc1)Nc1cccc(Cl)c1Cl
[c] COc1ccc(C)cc1N(CC(=O)Nc1ccc(S(=O)(=O)N2CCCC2)cc1)S(C)(=O)=O
[d] CCOC(=O)c1c(NC(=O)COc2ccccc2OCC)sc2c1CC(C)(C)NC2(C)C
Answer: d. CCOC(=O)c1c(NC(=O)COc2ccccc2OCC)sc2c1CC(C)(C)NC2(C)C
{#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)c1c(NC(=O)COc2ccccc2OCC)sc2c1CC(C)(C)NC2(C)C
CCOC(=O)c1c(NC(=O)COc2ccccc2OCC)sc2c1CC(C)(C)NC2(C)C
ethyl 2-[[2-(2-ethoxyphenoxy)acetyl]amino]-5,5,7,7-tetramethyl-4,6-dihydrothieno[2,3-c]pyridine-3-carboxylate