Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 2.220\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CCOc1ccccc1OCCOCCN1CC(C)OC(C)C1
(b) CC(C)(C)C(=O)NC(Sc1ccccc1)C(Cl)(Cl)Cl
Answer: a. CCOc1ccccc1OCCOCCN1CC(C)OC(C)C1
{#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#}
CCOc1ccccc1OCCOCCN1CC(C)OC(C)C1
CCOc1ccccc1OCCOCCN1CC(C)OC(C)C1
[C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][C][O][C][C][N][C][C][Branch1][C][C][O][C][Branch1][C][C][C][Ring1][Branch2]
4-[2-[2-(2-ethoxyphenoxy)ethoxy]ethyl]-2,6-dimethylmorpholine