Task: Answer the multiple-choice question.
Query: Which compound exhibits a 4.338\% 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 other words.
Options:
a CCOC(=O)c1c(C)n(Cc2ccccc2)c2ccc(OCC(O)Cn3nc(C)cc3C)cc12
b COc1cc(C2C(C#N)=C(N)Oc3cc(C)n(CCc4ccccc4)c(=O)c32)cc2c1OCO2
c CCOc1ccc(C)cc1S(=O)(=O)Nc1cccnc1
Answer: b. COc1cc(C2C(C#N)=C(N)Oc3cc(C)n(CCc4ccccc4)c(=O)c32)cc2c1OCO2
{#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#}
2-amino-4-(7-methoxy-1,3-benzodioxol-5-yl)-7-methyl-5-oxo-6-(2-phenylethyl)-4H-pyrano[3,2-c]pyridine-3-carbonitrile