| 1 | Chemical sysnthesis |
- | Pyridine Hydrobromide |
18820-82-1 | Plant |
| 2. | Brominating Agent |
- | Phosphorous Tribromide | 7789-60-8 | Plant |
| 3. | Chemical Sysnthesis |
- | Ethyl triphenyl Phosphonium Bromide | 1530-32-1 | Plant |
| 4 | Bromo acylations | - |
Acetyl Bromide | 506- 6-7 | Plant |
| 5. | Bromo Acylations |
- | Propionyl Bromide | 598-22-1 | Plant |
| 6. | Bromo Mineral Acid |
- | HBr, 33% in Acetic Acid | 10035-10-6 | Plant |
| 7. | Brominating Agent |
- | Pyridinium Bromide Perbromide | 39416-48-3 | Plant |




