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 other words.
Options:
a) Cc1cc(Nc2ccccc2)nc(NCc2ccccn2)n1
b) COc1cc(-c2cn(Cc3cc(Br)cc(Br)c3)nn2)ccc1-n1cnc(C)c1
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}
6-methyl-4-N-phenyl-2-N-(pyridin-2-ylmethyl)pyrimidine-2,4-diamine