Task: Answer the multiple-choice question.
Question: Which compound exhibits a 11.195\% human ether-à-go-go related gene (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 additional words.
Options:
(a) Cc1ccccc1Cn1c(CN2CCc3ccccc3C2)nc2c1c(=O)n(C)c(=O)n2C
(b) CNC(=S)Nc1cccc(S(=O)(=O)NC2=NCCC2)c1
(c) CCn1c(=O)c2c(n3c(=S)[nH]nc13)-c1ccccc1CC21CCCCC1
(d) CN(C(=O)c1ccc(NC(=O)Cc2cccc(NC(=O)C3CCCN(C(=O)C4CCCCC4)C3)c2)cc1)C1CCCC1
Answer: a. Cc1ccccc1Cn1c(CN2CCc3ccccc3C2)nc2c1c(=O)n(C)c(=O)n2C
{#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#}
Cc1ccccc1Cn1c(CN2CCc3ccccc3C2)nc2c1c(=O)n(C)c(=O)n2C
Cc1ccccc1Cn1c(CN2CCc3ccccc3C2)nc2c1c(=O)n(C)c(=O)n2C
8-(3,4-dihydro-1H-isoquinolin-2-ylmethyl)-1,3-dimethyl-7-[(2-methylphenyl)methyl]purine-2,6-dione