Task: Answer the MCQ question.
Query: Which drug exhibits a 1.531\% 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 CCOc1c(OC)cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccncc4)c32)cc1OC
b COC(=O)c1[nH]c2ccccc2c1NC(=O)C(C)N1CCN(C(=O)c2ccco2)CC1
c COc1ccc(NC(=O)CSc2nc3sc(C)cc3c(=O)n2C)c(OC)c1
d O=C(CSc1nnc(CNC(=O)c2ccccc2F)o1)NCc1ccco1
Answer: a. CCOc1c(OC)cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccncc4)c32)cc1OC
{#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#}
CCOc1c(OC)cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccncc4)c32)cc1OC
CCOc1c(OC)cc(C2C(C#N)=C(N)Oc3n[nH]c(-c4ccncc4)c32)cc1OC
6-amino-4-(4-ethoxy-3,5-dimethoxyphenyl)-3-pyridin-4-yl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile