Task: Answer the multiple-choice question.
Question: Which compound exhibits a 15.687\% 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) CCCCCc1ccc(-c2ccc(/C=C/C(=O)O)cc2)nc1
(b) NNc1ccc(Cl)c(C(=O)O)c1
(c) O=C(O)c1ccccc1N/C=C\[N+](=O)[O-]
(d) COc1cccc(CN2CCNC(=O)C2CC(=O)O)c1OC
Answer: d. COc1cccc(CN2CCNC(=O)C2CC(=O)O)c1OC
{#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-[1-[(2,3-dimethoxyphenyl)methyl]-3-oxopiperazin-2-yl]acetic acid