Task: Answer the multiple choice question.
Query: Which compound exhibits a -4.757\% 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] CCCC(=O)Nc1nc2nc(-c3ccccc3)cc(=O)n2[nH]1
[b] COc1ccc(N2CCN(c3ccnc4cc(Cl)ccc34)CC2)cc1
Answer: b. COc1ccc(N2CCN(c3ccnc4cc(Cl)ccc34)CC2)cc1
{#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#}
COc1ccc(N2CCN(c3ccnc4cc(Cl)ccc34)CC2)cc1
COc1ccc(N2CCN(c3ccnc4cc(Cl)ccc34)CC2)cc1
7-chloro-4-[4-(4-methoxyphenyl)piperazin-1-yl]quinoline