Task: Answer the multiple choice question.
Query: Which compound exhibits a 5.553\% 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 CCOC(=O)c1ccc(NC(=O)c2nc[nH]c2C(=O)NCCCCNC(=O)c2[nH]cnc2C(=O)Nc2ccc(C(=O)OCC)cc2)cc1
b Cc1ccc(Nc2nc(N)c([N+](=O)[O-])c(N3CCOCC3)n2)cc1
Answer: b. Cc1ccc(Nc2nc(N)c([N+](=O)[O-])c(N3CCOCC3)n2)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#}
Cc1ccc(Nc2nc(N)c([N+](=O)[O-])c(N3CCOCC3)n2)cc1
Cc1ccc(Nc2nc(N)c([N+](=O)[O-])c(N3CCOCC3)n2)cc1
2-N-(4-methylphenyl)-6-morpholin-4-yl-5-nitropyrimidine-2,4-diamine