Task: Answer the multiple choice question.
Question: Which compound has a -18.869\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: O=C(O)COc1cnc2ccccc2n1
b: COc1ccc(CNc2cc(C)nc3ccc(OC)cc23)cc1
c: COc1ccc(CNC(=O)c2cc(S(=O)(=O)N3CCOCC3)cn2C)cc1
Answer: b. COc1ccc(CNc2cc(C)nc3ccc(OC)cc23)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#}
COc1ccc(CNc2cc(C)nc3ccc(OC)cc23)cc1
COc1ccc(CNc2cc(C)nc3ccc(OC)cc23)cc1
6-methoxy-N-[(4-methoxyphenyl)methyl]-2-methylquinolin-4-amine