Task: Answer the multiple-choice question.
Query: Which compound has a 23.177\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] c1ccc2c(c1)CC1(CCCC1)N=C2N1CCOCC1
[b] Cc1cccc(Cc2nnc(NC(=O)c3cccc(S(=O)(=O)N4CCOCC4)c3)s2)c1
Answer: a. c1ccc2c(c1)CC1(CCCC1)N=C2N1CCOCC1
{#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#}
c1ccc2c(c1)CC1(CCCC1)N=C2N1CCOCC1
c1ccc2c(c1)CC1(CCCC1)N=C2N1CCOCC1
4-spiro[4H-isoquinoline-3,1'-cyclopentane]-1-ylmorpholine