Task: Answer the multiple-choice question.
Query: Which drug has a 1.780\% 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) CCOC(=O)N1CCN(C/C(C)=C/c2ccccc2)CC1
b) CCc1cccc(NC(=O)CCCCCC2NC(=O)NC2C)c1
c) COc1cc2[nH]c(C(=O)N(C)Cc3ccccc3)cc2c(OC)c1OC
d) Cc1cccc(C)c1NC(=S)N/N=C/c1ccccc1C(=O)O
Answer: a. CCOC(=O)N1CCN(C/C(C)=C/c2ccccc2)CC1
{#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)N1CCN(C/C(C)=C/c2ccccc2)CC1
CCOC(=O)N1CCN(C/C(C)=C/c2ccccc2)CC1
ethyl 4-[(E)-2-methyl-3-phenylprop-2-enyl]piperazine-1-carboxylate