Task: Answer the multiple-choice question.
Question: Which compound has a 21.583\% 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 other words.
Options:
a.) COCCCNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
b.) O=C(CNC(=O)/C=C/c1ccco1)N=Nc1c(O)[nH]c2ccccc12
c.) N#Cc1c(-c2ccccc2)nc(SCC(=O)Nc2ccccc2)[nH]c1=O
d.) CCc1cc2c(=O)c(-c3nc(C)cs3)coc2cc1O
Answer: a. COCCCNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
{#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#}
COCCCNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
COCCCNC(=O)CN(c1cc([N+](=O)[O-])ccc1OC)S(C)(=O)=O
2-(2-methoxy-N-methylsulfonyl-5-nitroanilino)-N-(3-methoxypropyl)acetamide