Comprehensive NMR Spectral Analysis and Prediction of Selected Coumarin Derivatives Using 1H, 13C, 2D-COSY, HSQC, and HMBC Techniques. Asian Journal of Medical Research and Health Sciences, [S. l.], v. 3, n. 02, p. 34–42, 2025. Disponível em: https://ajmrhs.com/journal/article/view/99. Acesso em: 27 mar. 2026.