Task: Answer the multiple choice question.
Question: Which compound exhibits a -6.503\% human ether-à-go-go related gene (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 other words.
Options:
[a] COC(=O)CC1=C(C(=O)OC)C(c2cc(OC)c(OC)cc2OC)C(C#N)=C(N)O1
[b] Nc1cc(=O)[nH]c(SCc2ccccc2Cl)n1
[c] O=C(O)c1cc(Cl)c(Cl)cc1C(=O)NCc1ccco1
[d] C=CC12C=CC=CN1C(C(=O)OC)=C(C(=O)OC)C(C(=O)OC)=C2C(=O)OC
Answer: a. COC(=O)CC1=C(C(=O)OC)C(c2cc(OC)c(OC)cc2OC)C(C#N)=C(N)O1
{#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#}
COC(=O)CC1=C(C(=O)OC)C(c2cc(OC)c(OC)cc2OC)C(C#N)=C(N)O1
COC(=O)CC1=C(C(=O)OC)C(c2cc(OC)c(OC)cc2OC)C(C#N)=C(N)O1
methyl 6-amino-5-cyano-2-(2-methoxy-2-oxoethyl)-4-(2,4,5-trimethoxyphenyl)-4H-pyran-3-carboxylate