Task: Answer the multiple-choice question.
Query: Which compound exhibits a 2.109\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] Nc1ccccc1C(=O)N(Cc1ccccc1)Cc1ccccc1
[b] COc1ccc(N(Cc2cc3cc(OC)ccc3[nH]c2=O)C(=O)c2cccnc2)cc1
Answer: a. Nc1ccccc1C(=O)N(Cc1ccccc1)Cc1ccccc1
{#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#}
Nc1ccccc1C(=O)N(Cc1ccccc1)Cc1ccccc1
Nc1ccccc1C(=O)N(Cc1ccccc1)Cc1ccccc1
[N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][=C][C][=C][C][=C][Ring1][=Branch1]
2-amino-N,N-dibenzylbenzamide