Antioxidant activity of two isomeric benzoxepin derivatives from the stem bark of Bauhinia Aculeata L.
| Main Authors: | Tanjung, Mulyadi, Ratih Dewi Saputri, Ratih Dewi, Tjahjandarie, Tjitjik Sri |
|---|---|
| Format: | Article PeerReviewed Image Book |
| Bahasa: | eng |
| Terbitan: |
Journal of Chemical And Pharmaceutical Reseach 3/668 Ma;viya Nagar, Jalpur Rajasthan, India-302017
, 2014
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| Subjects: | |
| Online Access: |
http://repository.unair.ac.id/63034/1/Cover.pdf http://repository.unair.ac.id/63034/2/Bukti%20C04.%20Antioxidant%20activity%20of%20two%20isomeric%20benzoxepin%20derivatives%20...........pdf http://repository.unair.ac.id/63034/3/Bukti%20C04%20Peer%20reviewer%20dan%20validasi%20Kadep.pdf http://repository.unair.ac.id/63034/ http://www.jocpr.com/ |
Daftar Isi:
- Two benzooxepin types isolated from the stem bark of Bauhinia aculeata L. (Fabaceae) have been identified as bauhiniastin 4 (1) and pacharin (2). The structure of both compounds have been elucidated based on its spectroscopic data, including UV, 1D and 2D NMR, and HREISMS spectra. Compounds 1 – 2 were evaluated for their radical scavenging against 2,2-diphenyl-1-picrylhydrazyl (DPPH), showing their IC50 were 32.7, and 1495.2 μM, respectively. The results indicate that as bauhiniastin 4 (1) slightly more active than ascorbic acid (62.8 μM).