Problem statement: Answer the multiple choice question.
Query: Which compound has a 20.458\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] N=c1c(C(=O)NCc2ccco2)cc2c(=O)n3ccccc3nc2n1CCc1ccccc1
[b] CCCCn1nnc(NC(=O)CC23CC4CC(CC(C4)C2)C3)n1
[c] CCOc1ccc(C2C3=C(CCCC3=O)OC(N)=C2[N+](=O)[O-])cc1
[d] COc1ccc(S(=O)(=O)N2CCN(Cc3ccc(OC)c(OC)c3)CC2)cc1
[e] c1ccc(-c2nnc(SCc3nc4ccccc4[nH]3)o2)cc1
Answer: c. CCOc1ccc(C2C3=C(CCCC3=O)OC(N)=C2[N+](=O)[O-])cc1
{#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#}
CCOc1ccc(C2C3=C(CCCC3=O)OC(N)=C2[N+](=O)[O-])cc1
CCOc1ccc(C2C3=C(CCCC3=O)OC(N)=C2[N+](=O)[O-])cc1
2-amino-4-(4-ethoxyphenyl)-3-nitro-4,6,7,8-tetrahydrochromen-5-one