Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 13.368\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCOC(=O)C1CCN(C(=S)Nc2ccc(CC)cc2)CC1
b. CCNC(=S)NCCN1CCOCC1
Answer: b. CCNC(=S)NCCN1CCOCC1
{#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#}
CCNC(=S)NCCN1CCOCC1
CCNC(=S)NCCN1CCOCC1
1-ethyl-3-(2-morpholin-4-ylethyl)thiourea