Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a -4.451\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: O=C1c2ccccc2-c2ccc(C(=O)N3CCOCC3)cc21
b: COCCNC(=O)c1ccccc1N(Cc1ccccc1)S(=O)(=O)c1ccc(C)cc1
c: CCc1ccc2c(CN3CCN(S(=O)(=O)c4cccs4)CC3)cc(=O)oc2c1
d: CCOC(=O)C(CC)/C(C)=N\NC(=O)c1cccc(C)c1
e: CCOc1cc(C)c(Cl)cc1S(=O)(=O)N(CC)CC
Answer: a. O=C1c2ccccc2-c2ccc(C(=O)N3CCOCC3)cc21
{#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#}
2-(morpholine-4-carbonyl)fluoren-9-one