Task: Answer the multiple-choice question.
Query: Which drug has a 2.246\% 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] C=CCN=C1CC(C)(C)CC(=O)/C1=C(\O)c1ccccc1
[b] COc1ccc(N2CCN(c3ccc(N)cc3C#N)CC2)cc1
Answer: b. COc1ccc(N2CCN(c3ccc(N)cc3C#N)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(c3ccc(N)cc3C#N)CC2)cc1
COc1ccc(N2CCN(c3ccc(N)cc3C#N)CC2)cc1
[C][O][C][=C][C][=C][Branch2][Ring1][Branch2][N][C][C][N][Branch1][=C][C][=C][C][=C][Branch1][C][N][C][=C][Ring1][#Branch1][C][#N][C][C][Ring1][#C][C][=C][Ring2][Ring1][Branch1]
5-amino-2-[4-(4-methoxyphenyl)piperazin-1-yl]benzonitrile