Task: Answer the multiple choice question.
Question: Which compound has a 1.439\% 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=c1c2ccccc2nc2c3ccccc3c(NCc3ccco3)nn12
b Cn1c(CN2CCN(c3ccc(Cl)cc3)CC2)nc2ccccc21
c CCN(C(=O)COC(=O)C1=COCCO1)c1ccccc1
d Cc1cc(Cl)ccc1OCC(=O)NCCOc1nc(N2CCCCC2)nc(N2CCOCC2)n1
Answer: a. O=c1c2ccccc2nc2c3ccccc3c(NCc3ccco3)nn12
{#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=c1c2ccccc2nc2c3ccccc3c(NCc3ccco3)nn12
O=c1c2ccccc2nc2c3ccccc3c(NCc3ccco3)nn12
8-(furan-2-ylmethylamino)-9,10,18-triazatetracyclo[8.8.0.02,7.012,17]octadeca-1(18),2,4,6,8,12,14,16-octaen-11-one