Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a CC(C)(C)COc1ccc2c(c1)[C@]1(COC(N)=N1)c1cc(-c3cccnc3F)ccc1O2
b CC1=NC2=[N+](CCC[C@H]2O)C(=O)[C@@H]1CC[NH+]1CCC(c2noc3cc(F)ccc23)CC1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}
(4S)-2'-(2,2-dimethylpropoxy)-7'-(2-fluoropyridin-3-yl)spiro[5H-1,3-oxazole-4,9'-xanthene]-2-amine