Task: Answer the multiple-choice question.
Query: Which drug exhibits a -16.819\% 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)Cn1c(=O)oc2cc(S(=O)(=O)NCCC(C)C)ccc21
b. O=C(c1cc2ccccc2o1)N1CCC(N2CCC(C(=O)N3CCCC3)CC2)CC1
Answer: b. O=C(c1cc2ccccc2o1)N1CCC(N2CCC(C(=O)N3CCCC3)CC2)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#}
O=C(c1cc2ccccc2o1)N1CCC(N2CCC(C(=O)N3CCCC3)CC2)CC1
O=C(c1cc2ccccc2o1)N1CCC(N2CCC(C(=O)N3CCCC3)CC2)CC1
[1-[1-(1-benzofuran-2-carbonyl)piperidin-4-yl]piperidin-4-yl]-pyrrolidin-1-ylmethanone