Task: Answer the multiple-choice question.
Query: Which compound exhibits a 5.131\% 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: O=C1C=C(Nc2ccccc2)C(=O)c2ccccc21
b: COC(=O)C1=C(N)Oc2c(oc(CO)cc2=O)C1c1c(F)cccc1Cl
c: Cc1cc(C(=O)CSc2nc(N)cc(=O)[nH]2)c(C)n1-c1cccc(F)c1
d: CS(=O)(=O)N(CC(=O)N1CCCC1)c1ccc(Cl)cc1
Answer: b. COC(=O)C1=C(N)Oc2c(oc(CO)cc2=O)C1c1c(F)cccc1Cl
{#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)C1=C(N)Oc2c(oc(CO)cc2=O)C1c1c(F)cccc1Cl
COC(=O)C1=C(N)Oc2c(oc(CO)cc2=O)C1c1c(F)cccc1Cl
methyl 2-amino-4-(2-chloro-6-fluorophenyl)-6-(hydroxymethyl)-8-oxo-4H-pyrano[3,2-b]pyran-3-carboxylate