Problem statement: Answer the multiple-choice question.
Question: Which compound has a 18.454\% 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. Cc1ccccc1N=C1SCC(=O)N1Cc1ccccc1
b. Clc1ccc2c(c1)C(c1ccccc1Cl)=NCc1nnc(N3CCN(CCSc4ccccc4)CC3)n1-2.O.O=C(O)/C=C/C(=O)O
c. CCOC(=O)N1CCN(C(=O)Cc2cccs2)CC1
d. Cc1ccc(C)c(Cn2cnc3c(oc4ccccc43)c2=O)c1
Answer: c. CCOC(=O)N1CCN(C(=O)Cc2cccs2)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(=O)Cc2cccs2)CC1
CCOC(=O)N1CCN(C(=O)Cc2cccs2)CC1
ethyl 4-(2-thiophen-2-ylacetyl)piperazine-1-carboxylate