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, b, c, or d without using any other words.
Options:
a.) COc1ccc([C@]2(c3ccc(F)cc3)N=C(c3cc(C#N)ccn3)N[C@H]2C)cn1
b.) O=C(c1ccc(C[C@@H]2CC[C@H]([C@H](O)c3ccccc3)N2)cc1)N1CCN(Cc2nnn(CC(F)F)n2)CC1
c.) O=C1N(CCN2CC3CCC2C3)CCN1c1cccc(Cl)c1
d.) COc1ccccc1N1CCN(Cc2nc3c4cccc(OC)c4nc(N)n3n2)[C@H](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}
2-[(4S,5S)-4-(4-fluorophenyl)-4-(6-methoxypyridin-3-yl)-5-methyl-1,5-dihydroimidazol-2-yl]pyridine-4-carbonitrile