Novel carbazole alkaloid from Murraya koenigii (l.) Spreng

Year 2023, Volume: 10 Issue: 3, 354 - 360, 27.08.2023

Arifa Mehreen , Shagufta Kamal , Sevinc Musayeva , Muhammad Qaisar , Sumia Urainab , Asad Ullah

https://doi.org/10.21448/ijsm.1193419

Abstract

Background: The plant Murraya koenigii (L.) Spreng.native to Pakistan and India and a part of the Rutaceae family, plays a vital role in the Indian Ayurvedic medicine system. Studies have shown that this plant's bark, roots, and leaves contain many carbazole alkaloids. These alkaloids are known to have substantial therapeutic properties.
Methods:
The crushed and powdered organs of M. koenigii were extracted with several solvents (acetone, chloroform, and methanol). Then, using column chromatography, a dull brown oily substance, MK- 1 (1.05 g), was obtained with chloroform and methanol (7:3).
Result
We have successfully isolated a new carbazole alkaloid, 3-geranyl 8-hydroxy 6, 7-di methoxy 3’, 3’-dimethyl 1, 2-pyranocarbazole, from the seeds of M. koenigii. The structure was further elucidated by cross-referencing our NMR, UV, IR, and MS data with that found in the published literature.
Conclusion:
Comparing the previously published literature data clearly explained that this alkaloid is new to M. koenigii.

Keywords

Murraya koenigii, Rutaceae, Carbazole alkaloid, Pyranocarbazole

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