Task: Answer the multiple-choice question.
Query: Which compound has a 1.889\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(COC(=O)c1cccnc1Nc1ccccc1F)NCc1ccc2c(c1)OCO2
b. O=C(/C=C/Nc1cccc(C(F)(F)F)c1)C(F)(F)F
c. C#CCOCCOCCOCCNc1nc(N2CCN(C(=O)CCCCCCCCCCNC(=O)Cn3cc(C[C@@H](C)O)nn3)CC2)nc(N2CCN(C(=O)CCCCCCCCCCNC(=O)[C@H](CCCN=C(N)N)n3cc(C[C@@H](C)CC)nn3)CC2)n1
d. Cc1ccc2c(Cl)c(C(=O)NCC3CCCO3)sc2c1
Answer: b. O=C(/C=C/Nc1cccc(C(F)(F)F)c1)C(F)(F)F
{#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(/C=C/Nc1cccc(C(F)(F)F)c1)C(F)(F)F
O=C(/C=C/Nc1cccc(C(F)(F)F)c1)C(F)(F)F
(E)-1,1,1-trifluoro-4-[3-(trifluoromethyl)anilino]but-3-en-2-one