Task: Please answer the multiple choice question.
Question: Which molecules are a 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(=O)N1CCC(CN2CCC3(CC2)OC(=O)Nc2ncccc23)CC1
b) C[C@H]1Cc2c([nH]c3ccccc23)[C@@]2(N1)C(=O)Nc1ccc(Cl)cc12
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}
ethyl 4-[(2-oxospiro[1H-pyrido[2,3-d][1,3]oxazine-4,4'-piperidine]-1'-yl)methyl]piperidine-1-carboxylate