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) CCOc1cc2ncc(C(N)=O)c(Nc3ccc(F)cc3F)c2cc1N1CCCN(C)CC1
b) O=C(C=Cc1ccc(CNCCc2c[nH]c3ccccc23)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}
4-(2,4-difluoroanilino)-7-ethoxy-6-(4-methyl-1,4-diazepan-1-yl)quinoline-3-carboxamide