Task: Answer the multiple choice question.
Query: Which compound has a -0.518\% 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: Cc1cc(Cl)ccc1OCCCC(=O)OCC(=O)Nc1cccc(S(N)(=O)=O)c1
b: C#Cc1ccc([C@@H]2C=C(C(=O)NCc3ccccc3)O[C@H](OCCCCO)C2)cc1
Answer: b. C#Cc1ccc([C@@H]2C=C(C(=O)NCc3ccccc3)O[C@H](OCCCCO)C2)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#}
C#Cc1ccc([C@@H]2C=C(C(=O)NCc3ccccc3)O[C@H](OCCCCO)C2)cc1
C#Cc1ccc([C@@H]2C=C(C(=O)NCc3ccccc3)O[C@H](OCCCCO)C2)cc1
(2S,4S)-N-benzyl-4-(4-ethynylphenyl)-2-(4-hydroxybutoxy)-3,4-dihydro-2H-pyran-6-carboxamide