Prednisone Impurity 13
- CAS No.
- 91160-89-3
- Chemical Name:
- Prednisone Impurity 13
- Synonyms
- BNKY015-BD02;Prednisone Impurity 5;Prednisone Impurity 13;Budesonide Impurity 53;9α-bromo-11β,16α,17α,21-tetrahydroxypregnane-1,4-diene-3,20-dione-21-acetate;9α-bromo-11β,16α,17α,21-tetrahydroxypregnane-1,4-diene-3,20-dione-21-acetate;(11β,16α)-21-(Acetyloxy)-9-bromo-11,16,17-trihydroxy-pregna-1,4-diene-3,20-dione;Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-9-bromo-11,16,17-trihydroxy-, (11β,16α)-;((8S,9R,10S,11S,13S,14S,16R,17S)-9-bromo-11,16,17-trihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate;2-((8S,9R,10S,11S,13S,14S,16R,17S)-9-bromo-11,16,17-trihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate
- CBNumber:
- CB44844383
- Molecular Formula:
- C23H29BrO7
- Molecular Weight:
- 497.38
- MDL Number:
- MOL File:
- 91160-89-3.mol
Prednisone Impurity 13 Chemical Properties,Uses,Production
Uses
(11β,16α)-21-(Acetyloxy)-9-bromo-11,16,17-trihydroxy-pregna-1,4-diene-3,20-dione is used as a reactant in the synthesis of triamcinolone acetonide, a synthetic corticosteroid used to treat skin conditions.
Synthesis
50.5 g of 2-((8S,10S,13S,14S,16R,17S)-16,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate was dissolved in 1500 ml of acetone, 70 ml of 5% perchloric acid was added, the temperature was lowered to 0°C with stirring, and 45 g of N-bromosuccinimide was added and stirred After the reaction was completed, 50 ml of 20% sodium sulfite aqueous solution was added, the acetone was concentrated, the water was separated, filtered, and dried to obtain 62 g of Prednisone Impurity 13 (9α-bromo-11β,16α,17α,21-tetrahydroxypregnane-1,4-diene-3,20-dione-21-acetate).
Prednisone Impurity 13 Preparation Products And Raw materials
Prednisone Impurity 13 Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| BIONNA MEDICINE CO.,LTD | 01056380788-8515; +8618518759099 | 790226113@qq.com | China | 52 | 58 |
| Beijing Comparison Pharmaceutical Technology Co., Ltd | 010-010-52878169 15801002657 | sales@bjcomparison.com | China | 4990 | 58 |
| ChemStrong Scientific Co.,Ltd | 0755-0755-66853366 13670046396 | sales@chem-strong.com | China | 18042 | 56 |
| Hubei Yangxin Medical Technology Co., Ltd. | 15374522761 | 3003392093@qq.com | China | 8378 | 55 |
| Shenzhen Polymeri Biochemical Technology Co., Ltd. | +86-400-002-6226 +86-13028896684; | sales@rrkchem.com | China | 57412 | 58 |
| Jinan blalong chemical co. LTD | 2710913286@.com | 1513643261@qq.com | China | 14246 | 58 |
| Bono Kangyuan (Beijing) Pharmaceutical Technology Co., Ltd | 010-56380788-8515 16619769925 | wch013@bionna.cn | China | 53 | 58 |
| Wuxi Helen Biotechnology Co., Ltd., | 0510-85629785 18013409632 | sales@reading-chemicals.com | China | 14081 | 58 |
| Meng Cheng Technology (Shanghai) Co., LTD | 400-820-6829 | sales@mitachieve.com | China | 8860 | 58 |
| Wuhan Dingxintong Pharmaceutical Co. , Ltd. | 027-027-52344656 15871722230 | 15871722230@163.com | China | 4855 | 58 |