Problem statement: Answer the MCQ question.
Question: Which compound has a 4.521\% 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=C(O)CCC(=O)OCC1CCCCC1
b: CCCC12CN3CC(C)(CN(C1)C3c1ccc([N+](=O)[O-])o1)C2=O
c: CC(C)[C@H](NC(=O)Nc1ccccc1F)C(=O)O
d: COc1ccc(-c2nc3nc(N)nn3cc2C)cc1F
e: COc1ccc(C2=NOC(CNC(=S)N3CCOCC3)C2)cc1
Answer: a. O=C(O)CCC(=O)OCC1CCCCC1
{#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(O)CCC(=O)OCC1CCCCC1
O=C(O)CCC(=O)OCC1CCCCC1
4-(cyclohexylmethoxy)-4-oxobutanoic acid