Task: Answer the multiple choice question.
Query: Which compound exhibits a 4.503\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] COc1cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccccn4)c32)cc(OC)c1OC
[b] COc1cc(OC)c(NS(=O)(=O)c2ccc(Cl)c(C(=O)OC(C)C(=O)N3CCCC3)c2)cc1Cl
[c] O=S(=O)(Nc1ccccc1)c1ccc(NS(=O)(=O)c2c(F)cccc2F)cc1
[d] Br.CC1=CS(=O)(=O)CC1Sc1nc2ccccc2[nH]1
Answer: a. COc1cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccccn4)c32)cc(OC)c1OC
{#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#}
COc1cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccccn4)c32)cc(OC)c1OC
COc1cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccccn4)c32)cc(OC)c1OC
6-amino-3-pyridin-2-yl-4-(3,4,5-trimethoxyphenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile