Task: Answer the MCQ question.
Query: Which drug exhibits a 1.637\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a.) Cc1ccc2nc3nc(NCC4CCCO4)c(C(=O)NC4CCCCC4)cc3c(=O)n2c1
b.) COc1ccc2c3n([n+]([O-])c2c1)CCN=C3c1ccc(Cl)cc1
c.) CCn1cc(C(C)(C)C)c(C#N)c1NC(C)=O
Answer: b. COc1ccc2c3n([n+]([O-])c2c1)CCN=C3c1ccc(Cl)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#}
COc1ccc2c3n([n+]([O-])c2c1)CCN=C3c1ccc(Cl)cc1
COc1ccc2c3n([n+]([O-])c2c1)CCN=C3c1ccc(Cl)cc1
1-(4-chlorophenyl)-8-methoxy-6-oxido-3,4-dihydropyrazino[1,2-b]indazol-6-ium