Task: Answer the multiple choice question.
Question: Which compound has a 18.864\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) CCOC(=O)CN1NC2(CCC(C(C)(C)C)CC2)NC1=S
(b) CC1CCCN(C(=O)C2CCN(C(=O)Nc3ccccc3)CC2)C1
(c) O=c1cc(CN2CCc3ccccc32)c2ccc(O)cc2o1
(d) Oc1ccc[n+](/C=C\c2ccccc2)c1.[Br-]
Answer: a. CCOC(=O)CN1NC2(CCC(C(C)(C)C)CC2)NC1=S
{#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#}
CCOC(=O)CN1NC2(CCC(C(C)(C)C)CC2)NC1=S
CCOC(=O)CN1NC2(CCC(C(C)(C)C)CC2)NC1=S
ethyl 2-(8-tert-butyl-3-sulfanylidene-1,2,4-triazaspiro[4.5]decan-2-yl)acetate