Task: Answer the multiple-choice question.
Question: Which drug exhibits a 8.556\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) COC(=O)c1cc(S(=O)(=O)NCCN2CCOCC2)cn1C
b) Cc1cc(C2(c3ccc(O)c(C)c3)OC(=O)c3ccccc32)ccc1O
Answer: a. COC(=O)c1cc(S(=O)(=O)NCCN2CCOCC2)cn1C
{#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)c1cc(S(=O)(=O)NCCN2CCOCC2)cn1C
COC(=O)c1cc(S(=O)(=O)NCCN2CCOCC2)cn1C
methyl 1-methyl-4-(2-morpholin-4-ylethylsulfamoyl)pyrrole-2-carboxylate