A new alkaloid has been isolated from Isatis costata C.A.Mey. and assigned structure 1 on the basis of spectroscopic data including 1D and 2D NMR techniques. Methyl 2-acetoamidobenzoate (2), \beta-sitosterol (3), and ursolic acid (4) were also isolated for the first time from this species.
FATIMA, ITRAT; ANIS, ITRAT; AHMAD, IJAZ; MALIK, ABDUL; and AFZA, NIGHAT (2007) "A New Alkaloid from Isatis costata," Turkish Journal of Chemistry: Vol. 31: No. 4, Article 6. Available at: https://journals.tubitak.gov.tr/chem/vol31/iss4/6