Task: Answer the multiple choice question.
Question: Which compound has a 4.626\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CCn1cc(C2N3CC4(C)CN2CC(C)(C3)C4=O)c2ccccc21
[b] Cc1cccc(C#N)c1
[c] C=CCn1c(C)cc(C(=O)COC(=O)COc2ccccc2C#N)c1C
[d] COC(=O)[C@H](C)NC(=O)Nc1ccc(Oc2ccccc2)cc1
Answer: a. CCn1cc(C2N3CC4(C)CN2CC(C)(C3)C4=O)c2ccccc21
{#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#}
CCn1cc(C2N3CC4(C)CN2CC(C)(C3)C4=O)c2ccccc21
CCn1cc(C2N3CC4(C)CN2CC(C)(C3)C4=O)c2ccccc21
[C][C][N][C][=C][Branch2][Ring1][#Branch2][C][N][C][C][Branch1][C][C][C][N][Ring1][#Branch1][C][C][Branch1][C][C][Branch1][Ring2][C][Ring1][#Branch2][C][Ring1][=Branch2][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring2][Ring1][=Branch1]
2-(1-ethylindol-3-yl)-5,7-dimethyl-1,3-diazatricyclo[3.3.1.13,7]decan-6-one