Task: Answer the MCQ question.
Question: Which drug has a -7.520\% 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 CC(=O)Nc1ccc(S(=O)(=O)NC(C)C(=O)OCC(=O)NC2CCCC2)cc1
b CC(C)(C)OC(=O)N1CCC[C@@H]1CO
Answer: b. CC(C)(C)OC(=O)N1CCC[C@@H]1CO
{#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#}
CC(C)(C)OC(=O)N1CCC[C@@H]1CO
CC(C)(C)OC(=O)N1CCC[C@@H]1CO
tert-butyl (2R)-2-(hydroxymethyl)pyrrolidine-1-carboxylate