Problem statement: Answer the MCQ question.
Question: Which drug exhibits a -18.175\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: COc1ccc(C2CC(=O)C3=C(C2)Nc2ccccc2N(C(=O)C2CC2)C3c2cccnc2)cc1OC
b: CCOc1ccc(CNCCN2CCCC2)cc1.O=C(O)C(=O)O
Answer: b. CCOc1ccc(CNCCN2CCCC2)cc1.O=C(O)C(=O)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#}
CCOc1ccc(CNCCN2CCCC2)cc1.O=C(O)C(=O)O
CCOc1ccc(CNCCN2CCCC2)cc1.O=C(O)C(=O)O
N-[(4-ethoxyphenyl)methyl]-2-pyrrolidin-1-ylethanamine;oxalic acid