Task: Answer the MCQ question.
Question: Which drug exhibits a 2.018\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1ccc(S(=O)(=O)N(C)C)cc1NC(=O)CCNC(=O)c1ccccc1OC
(b) CCOCCCN1CC(C(=O)NCCc2ccccc2)CC1=O
Answer: b. CCOCCCN1CC(C(=O)NCCc2ccccc2)CC1=O
{#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#}
1-(3-ethoxypropyl)-5-oxo-N-(2-phenylethyl)pyrrolidine-3-carboxamide