Task: Answer the multiple choice question.
Query: Which drug exhibits a -63.634% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CC1N=C2c3ccccc3N=C(SCc3cc(=O)n4cc(Cl)ccc4n3)N2C1=O
[b] Cc1n[nH]c(C)c1S(=O)(=O)N1CCc2ccccc2C1
[c] COc1ccc(N2CCN(Cc3cc4c(cc3Br)OCCO4)CC2)cc1
[d] O=C(CSc1nc(C2CC2)n(-c2ccccc2)n1)NCc1ccco1
Answer: a. CC1N=C2c3ccccc3N=C(SCc3cc(=O)n4cc(Cl)ccc4n3)N2C1=O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CC1N=C2c3ccccc3N=C(SCc3cc(=O)n4cc(Cl)ccc4n3)N2C1=O
CC1N=C2c3ccccc3N=C(SCc3cc(=O)n4cc(Cl)ccc4n3)N2C1=O
5-[(7-chloro-4-oxopyrido[1,2-a]pyrimidin-2-yl)methylsulfanyl]-2-methyl-2H-imidazo[1,2-c]quinazolin-3-one