Flavanones From the Twigs and Barks of Artocarpus Lakoocha Having Antiplasmodial and Anti-TB Activities

Chromatographic separation of the acetone extracts from the twigs and barks of Artocarpus lakoocha led to the isolation of the one new flavanone, lakoochanone (1), together with eleven known compounds (2-12). Lakoochanone (1) and moracin C (4) exhibited weak antiplasmodial activity against Plasmodium falciparum Dd2 with IC₅₀ values of 36.7 and 33.9 µM, respectively. Moreover, moracin C (4) and sanggenofuran B (5) showed cytotoxic activity against A2780 cell line with the respective IC₅₀ values of 15.0 and 57.1 µM. In addition, cyclocommunin (7) displayed strong antimycobacterial activity against Mycobacterium tuberculosis H37Ra with the minimum inhibitory concentration (MIC) value of 12.3 µM.

Sirada Boonyaketgoson, Yongle Du, Ana L. Valenciano Murillo, Maria B. Cassera, David G. I. Kingston, Kongkiat Trisuwan. Chem Pharm Bull (Tokyo). 2020;68(7):671-674. doi: 10.1248/cpb.c20-00080.