Task: Answer the MCQ question.
Query: Which compound has a 2.661\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: CCOC(=O)CCC(NC(=O)CCCCCCCC(=O)NC(CCC(=O)OCC)C(=O)OCC)C(=O)OCC
b: CCC1Cc2c(nc(N)c3c(N)nc(N4CCOCC4)c(C#N)c23)O1
c: CCN(CC)S(=O)(=O)c1ccc(C(=O)NCc2ccc(C)cc2)cc1
d: COc1ccc(OC)c(NC(=O)C(=O)NCc2ccncc2)c1
e: CC(C)CC(=O)NC1(C(F)(F)F)C(=O)Nc2c1c(=O)n(C)c(=O)n2C
Answer: b. CCC1Cc2c(nc(N)c3c(N)nc(N4CCOCC4)c(C#N)c23)O1
{#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#}
CCC1Cc2c(nc(N)c3c(N)nc(N4CCOCC4)c(C#N)c23)O1
CCC1Cc2c(nc(N)c3c(N)nc(N4CCOCC4)c(C#N)c23)O1
5,6-diamino-2-ethyl-8-morpholin-4-yl-1,2-dihydrofuro[2,3-c][2,7]naphthyridine-9-carbonitrile