Task: Answer the multiple-choice question.
Question: Which compound exhibits a -1.270\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: COc1ccccc1N1CCN(C(c2cc3cc(C)ccc3[nH]c2=O)c2nnnn2C2CCCC2)CC1
b: COc1ccc(N2C(=O)/C(=C3/C=CC=CN3C)SC2=S)cc1
Answer: a. COc1ccccc1N1CCN(C(c2cc3cc(C)ccc3[nH]c2=O)c2nnnn2C2CCCC2)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#}
COc1ccccc1N1CCN(C(c2cc3cc(C)ccc3[nH]c2=O)c2nnnn2C2CCCC2)CC1
COc1ccccc1N1CCN(C(c2cc3cc(C)ccc3[nH]c2=O)c2nnnn2C2CCCC2)CC1
[C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][C][N][Branch2][Ring2][Branch1][C][Branch2][Ring1][Ring1][C][=C][C][=C][C][Branch1][C][C][=C][C][=C][Ring1][#Branch1][NH1][C][Ring1][O][=O][C][=N][N][=N][N][Ring1][Branch1][C][C][C][C][C][Ring1][Branch1][C][C][Ring2][Ring1][=N]
3-[(1-cyclopentyltetrazol-5-yl)-[4-(2-methoxyphenyl)piperazin-1-yl]methyl]-6-methyl-1H-quinolin-2-one