Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. Cc1nc2cnc(Oc3ccc(F)cc3)cc2c(=O)n1CC1CCCN(C(C)C)C1
b. O=C(/C=C/c1ccc(CN2CCCC(c3c[nH]c4ccccc34)C2)cc1)NO
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-(4-fluoranylphenoxy)-2-methyl-3-[(1-propan-2-ylpiperidin-3-yl)methyl]pyrido[3,4-d]pyrimidin-4-one