Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a -6.128\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a CC(C)=C(NC(=O)c1ccccc1)C(=O)N/N=C(\C)c1ccccc1O
b Nc1nc(N)c2[nH]cnc2n1
c COC(=O)C1CSC(C(=O)OC)N1C(=O)CN1CC(C)OC(C)C1
Answer: b. Nc1nc(N)c2[nH]cnc2n1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__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_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Nc1nc(N)c2[nH]cnc2n1
Nc1nc(N)c2[nH]cnc2n1
7H-purine-2,6-diamine