Task: Answer the multiple-choice question.
Query: Which compound exhibits a -1.622\% 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: COc1cccc(N2CCN(C(=O)CCc3nnc4ccc(N5CCCC5)nn34)CC2)c1
b: CN1CCN(c2ncccc2S(=O)(=O)N2CCCCC2)CC1
Answer: a. COc1cccc(N2CCN(C(=O)CCc3nnc4ccc(N5CCCC5)nn34)CC2)c1
{#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#}
COc1cccc(N2CCN(C(=O)CCc3nnc4ccc(N5CCCC5)nn34)CC2)c1
COc1cccc(N2CCN(C(=O)CCc3nnc4ccc(N5CCCC5)nn34)CC2)c1
1-[4-(3-methoxyphenyl)piperazin-1-yl]-3-(6-pyrrolidin-1-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propan-1-one