Task: Answer the MCQ question.
Query: Which compound exhibits a 5.575\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a.) COc1ccc(OC)c(N/C(=N/C(=S)Nc2ccccc2)Nc2nc(C)cc(C)n2)c1
b.) COC(=O)C(C)N(C#N)c1nc(C)cc(C)n1
c.) Cc1ccc2cc(CCNC(=O)c3ccc(Br)o3)c(=O)[nH]c2c1
d.) Cc1cc(=O)n2nc(N3CCCC(C(=O)NCCCN4CC(C)CC(C)C4)C3)sc2n1
Answer: b. COC(=O)C(C)N(C#N)c1nc(C)cc(C)n1
{#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#}
COC(=O)C(C)N(C#N)c1nc(C)cc(C)n1
COC(=O)C(C)N(C#N)c1nc(C)cc(C)n1
methyl 2-[cyano-(4,6-dimethylpyrimidin-2-yl)amino]propanoate