Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCOC[C@H](Oc1ncnc2c1cnn2-c1ccccc1Cl)C(=O)Nc1cnc(C)cn1
[b] Cc1cc2nc(CCC3CCCN3C)n(Cc3ccc(Cl)cc3)c2cc1C
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}
(2S)-2-[1-(2-chlorophenyl)pyrazolo[3,4-d]pyrimidin-4-yl]oxy-3-ethoxy-N-(5-methylpyrazin-2-yl)propanamide