Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 1.837\% 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) COc1ccc2c(c1OC)C(=O)N(c1nccs1)C2
(b) CCOC(=O)N1CCN(C(=O)CSc2nc3c(c(=O)n2-c2ccccc2OC)SCC3)CC1
Answer: b. CCOC(=O)N1CCN(C(=O)CSc2nc3c(c(=O)n2-c2ccccc2OC)SCC3)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)CSc2nc3c(c(=O)n2-c2ccccc2OC)SCC3)CC1
CCOC(=O)N1CCN(C(=O)CSc2nc3c(c(=O)n2-c2ccccc2OC)SCC3)CC1
ethyl 4-[2-[[3-(2-methoxyphenyl)-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl]sulfanyl]acetyl]piperazine-1-carboxylate