Task: Answer the multiple choice question.
Query: Which compound has a 6.886\% 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 or b without using any additional words.
Options:
a. COc1ccc(-n2nc(C(=O)NCC(=O)N3CCN(c4ccccn4)CC3)c3ccccc3c2=O)cc1OC
b. CCOC(=O)C(C(=O)OCC)C(=O)c1cc(OC)c(OC)c(OC)c1
Answer: a. COc1ccc(-n2nc(C(=O)NCC(=O)N3CCN(c4ccccn4)CC3)c3ccccc3c2=O)cc1OC
{#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#}
3-(3,4-dimethoxyphenyl)-4-oxo-N-[2-oxo-2-(4-pyridin-2-ylpiperazin-1-yl)ethyl]phthalazine-1-carboxamide