No data available. Treat as potentially hazardous.

Preliminary Characterization of Lembouruine

Lembouruine (hypothetical C 21 H 26 N 2 O 5 ) is a putative alkaloid of unknown natural source.

Further research is required to confirm existence and properties. Please verify the spelling or provide additional context (e.g., where you saw the word, a sentence, or a subject area). With that, I can produce a factual and accurate report.