Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -18.441\% 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 other words.
Options:
[a] N#CCCn1cc(C(=O)NCc2ccccc2)c(-c2ccc3c(c2)OCCO3)n1
[b] O=C(COc1ccc([N+](=O)[O-])cc1)NCC(c1cccs1)N1CCOCC1
[c] CC(=O)N1N=C2C3CCN(CC3)C2C1c1cccc2ccccc12
[d] CC1=C(C(=O)Nc2ccccc2C)C(c2ccc(C)o2)n2c(s/c(=C/c3ccccc3)c2=O)=N1
Answer: b. O=C(COc1ccc([N+](=O)[O-])cc1)NCC(c1cccs1)N1CCOCC1
{#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(COc1ccc([N+](=O)[O-])cc1)NCC(c1cccs1)N1CCOCC1
O=C(COc1ccc([N+](=O)[O-])cc1)NCC(c1cccs1)N1CCOCC1
N-(2-morpholin-4-yl-2-thiophen-2-ylethyl)-2-(4-nitrophenoxy)acetamide