Task: Answer the MCQ question.
Question: Which compound has a 18.412\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1cc(OC)c(C2=NOC(C(=O)O)C2)cc1Cl
(b) CCOc1ccc(CNC(=O)c2ccc3c(c2)N(CC)CCS3)cc1
Answer: b. CCOc1ccc(CNC(=O)c2ccc3c(c2)N(CC)CCS3)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#}
N-[(4-ethoxyphenyl)methyl]-4-ethyl-2,3-dihydro-1,4-benzothiazine-6-carboxamide