Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a COc1cccc(-c2cccc(C3(C)CSCC(N)=N3)c2)c1
b CCc1cccc(NC(=O)N2CCc3nc(-c4cncnc4)nc(-c4ccccc4C)c3C2)c1
Answer: a, b
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}
N-(3-ethylphenyl)-4-(2-methylphenyl)-2-pyrimidin-5-yl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine-6-carboxamide