Task: Answer the multiple-choice question.
Question: Which compound has a -5.175\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(COc1cccc(C(F)(F)F)c1)NCC(c1cccs1)N1CCOCC1
b: CCC1Oc2ccccc2N(CC(=O)NCCCN2CCOCC2)C1=O
Answer: a. O=C(COc1cccc(C(F)(F)F)c1)NCC(c1cccs1)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(C(F)(F)F)c1)NCC(c1cccs1)N1CCOCC1
O=C(COc1cccc(C(F)(F)F)c1)NCC(c1cccs1)N1CCOCC1
N-(2-morpholin-4-yl-2-thiophen-2-ylethyl)-2-[3-(trifluoromethyl)phenoxy]acetamide