Task: Answer the multiple-choice question.
Query: Which compound exhibits a 6.422\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CN1CCN(C(CNC(=O)c2ccc(Br)o2)c2ccc(F)cc2)CC1
(b) CN(C)CCNC(=O)CN1C(=O)COc2ccc(C(C)(C)C)cc21
Answer: b. CN(C)CCNC(=O)CN1C(=O)COc2ccc(C(C)(C)C)cc21
{#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#}
CN(C)CCNC(=O)CN1C(=O)COc2ccc(C(C)(C)C)cc21
CN(C)CCNC(=O)CN1C(=O)COc2ccc(C(C)(C)C)cc21
2-(6-tert-butyl-3-oxo-1,4-benzoxazin-4-yl)-N-[2-(dimethylamino)ethyl]acetamide