Task: Answer the multiple choice question.
Query: Which compound exhibits a -3.416\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a COc1ccc(-c2nc(CN3CCC(C(=O)NC4CCN(Cc5ccccc5)CC4)CC3)c(C)o2)cc1OC
b O=C(CCn1nc(-c2ccc(Cl)cc2)ccc1=O)N1CCN(c2ccc(F)cc2)CC1
c CN1/C(=C\C=C2\N=C(c3ccc(F)cc3)OC2=O)C(C)(C)c2ccccc21
d COC(=O)C1=C(N)Oc2cc(C)n(Cc3ccccc3)c(=O)c2C1c1ccccc1
Answer: d. COC(=O)C1=C(N)Oc2cc(C)n(Cc3ccccc3)c(=O)c2C1c1ccccc1
{#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)Oc2cc(C)n(Cc3ccccc3)c(=O)c2C1c1ccccc1
COC(=O)C1=C(N)Oc2cc(C)n(Cc3ccccc3)c(=O)c2C1c1ccccc1
methyl 2-amino-6-benzyl-7-methyl-5-oxo-4-phenyl-4H-pyrano[3,2-c]pyridine-3-carboxylate