Problem statement: Answer the multiple-choice question.
Question: Which compound has a 5.491\% 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 COc1ccc2cc3cc(C(=O)NCCN4CCN(Cc5ccccc5)CC4)oc3nc2c1
b COc1ccc2ccc3c(c2c1)N=CC1(O3)N(C)c2ccccc2C1(C)C
c COCCCNC(=O)c1ccc2c(=O)n(C3CCCC3)c(=S)[nH]c2c1
d O=C1C=CC(=O)N1c1ccc(OC(F)F)cc1
Answer: d. O=C1C=CC(=O)N1c1ccc(OC(F)F)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=C1C=CC(=O)N1c1ccc(OC(F)F)cc1
O=C1C=CC(=O)N1c1ccc(OC(F)F)cc1
1-[4-(difluoromethoxy)phenyl]pyrrole-2,5-dione