Task: Answer the multiple choice question.
Question: Which drug exhibits a 9.979\% 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.) COC(=O)CCC(=O)Nc1ccc(C)cc1OC(=O)CCC(=O)OC
b.) CCOCCn1c(=O)c2c(nc3n2CCN3c2ccc(CC)cc2)n(C)c1=O
Answer: b. CCOCCn1c(=O)c2c(nc3n2CCN3c2ccc(CC)cc2)n(C)c1=O
{#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#}
CCOCCn1c(=O)c2c(nc3n2CCN3c2ccc(CC)cc2)n(C)c1=O
CCOCCn1c(=O)c2c(nc3n2CCN3c2ccc(CC)cc2)n(C)c1=O
[C][C][O][C][C][N][C][=Branch1][C][=O][C][=C][Branch2][Ring1][#Branch1][N][=C][N][Ring1][Branch1][C][C][N][Ring1][Branch1][C][=C][C][=C][Branch1][Ring1][C][C][C][=C][Ring1][Branch2][N][Branch1][C][C][C][Ring2][Ring1][=Branch1][=O]
2-(2-ethoxyethyl)-6-(4-ethylphenyl)-4-methyl-7,8-dihydropurino[7,8-a]imidazole-1,3-dione