Task: Answer the MCQ question.
Question: Which compound exhibits a -1.878\% 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(c1ccc2c(c1)ncn2-c1ccc(F)cc1F)N1CCC2(CC1)OCCO2
[b] COC(=O)CSc1nccc(-c2ccc(F)cc2)c1C#N
Answer: a. O=C(c1ccc2c(c1)ncn2-c1ccc(F)cc1F)N1CCC2(CC1)OCCO2
{#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(c1ccc2c(c1)ncn2-c1ccc(F)cc1F)N1CCC2(CC1)OCCO2
O=C(c1ccc2c(c1)ncn2-c1ccc(F)cc1F)N1CCC2(CC1)OCCO2
[1-(2,4-difluorophenyl)benzimidazol-5-yl]-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)methanone