Task: Answer the MCQ question.
Query: Which drug has a 18.083\% 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 other words.
Options:
[a] O=[N+]([O-])c1ccccc1S(=O)(=O)Nc1ccn(Cc2c(F)cccc2Cl)n1
[b] C#CCn1cnc2c(oc3ccccc32)c1=O
[c] FC(F)(F)c1cc(-c2cccs2)nc2ncnn12
[d] CCOC(=O)Nc1n[nH]c(NC(=O)OCC)c1[N+](=O)[O-]
Answer: b. C#CCn1cnc2c(oc3ccccc32)c1=O
{#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#}
C#CCn1cnc2c(oc3ccccc32)c1=O
C#CCn1cnc2c(oc3ccccc32)c1=O
3-prop-2-ynyl-[1]benzofuro[3,2-d]pyrimidin-4-one