Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 2.239\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. O=C1C(C=NCC2CCCO2)=C(O)c2ccccc21
b. O=C(CN1C(=O)NC2(CCCC2)C1=O)OCc1ccccc1
c. CCOC(=O)c1c(C)[nH]c(C)c1C(=O)COC(=O)c1cc2ccccc2cc1OC
d. Cc1cccc(NC(=O)C2CCN(S(=O)(=O)c3c(C)[nH]c(=O)[nH]c3=O)CC2)c1
e. CCOC(=O)C1(CC)NC(c2ccc(OC)cc2OC)C2C(=O)N(C)C(=O)C21
Answer: a. O=C1C(C=NCC2CCCO2)=C(O)c2ccccc21
{#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#}
O=C1C(C=NCC2CCCO2)=C(O)c2ccccc21
O=C1C(C=NCC2CCCO2)=C(O)c2ccccc21
3-hydroxy-2-(oxolan-2-ylmethyliminomethyl)inden-1-one