Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a CCn1cc(C(=O)[O-])c(=O)c2cc(F)c(N3CC[NH2+][C@H](C)C3)c(F)c21
b COc1cc(N)c(Cl)cc1C(=O)NC1CCN(Cc2ccccc2)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}
1-ethyl-6,8-difluoro-7-[(3R)-3-methylpiperazin-4-ium-1-yl]-4-oxoquinoline-3-carboxylate