Task: Answer the MCQ question.
Question: Which drug exhibits a 2.267\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a COc1ccc(CCNC(=O)COC(=O)Cc2ccccc2)cc1
b CC(=O)N1CCN(S(=O)(=O)c2cccc(C(=O)NCCC3=CCCCC3)c2)CC1
c O=C(Cn1ncc2c([nH]c3ccccc32)c1=O)N1CCN(c2ccccc2F)CC1
d O=C(CNC(=O)c1cccs1)NCC(=O)OCc1ccc(Cl)cc1Cl
e CCn1c(SCc2cccc(F)c2)nnc1C(Cc1ccccc1)NS(=O)(=O)c1ccc(F)cc1
Answer: c. O=C(Cn1ncc2c([nH]c3ccccc32)c1=O)N1CCN(c2ccccc2F)CC1
{#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(Cn1ncc2c([nH]c3ccccc32)c1=O)N1CCN(c2ccccc2F)CC1
O=C(Cn1ncc2c([nH]c3ccccc32)c1=O)N1CCN(c2ccccc2F)CC1
3-[2-[4-(2-fluorophenyl)piperazin-1-yl]-2-oxoethyl]-5H-pyridazino[4,5-b]indol-4-one