Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 3.341\% human ether-à-go-go related gene (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] O=C(COc1cccc(-n2cnnn2)c1)N1CCOCC1
[b] COc1ccc(Cl)cc1CN1CCN(c2nc(C)cc(C)c2C#N)CC1
Answer: a. O=C(COc1cccc(-n2cnnn2)c1)N1CCOCC1
{#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#}
O=C(COc1cccc(-n2cnnn2)c1)N1CCOCC1
O=C(COc1cccc(-n2cnnn2)c1)N1CCOCC1
1-morpholin-4-yl-2-[3-(tetrazol-1-yl)phenoxy]ethanone