Name | Galanthamine base |
Synonyms | Jilkon Galantamin GALANTAMINE GALANTHAMINE galanthamine Galanthamine base GALANTHAMINE HYDROCHLORIDE 6h-benzofuro(3a,3,2-ef)(2)benzazepin-6-ol,4a,5,9,10,11,12-hexahydro-3-methox (4aS,6R,8aS)-4a,5,9,10,11,12-Hexahydro-3-methoxy-11-methyl-6H-benzofuro[3a,3,2-ef][2]benzazepin-6-ol (4as,6r,8as)-4a,5,9,10,11,12-hexahydro-3-methoxy-11-methyl-6h-benzofuro[3a,3,2-ef][2]benzazepin-6-ol 6H-Benzofuro(3a,3,2-ef)(2)benzazepin-6-ol, 4a,5,9,10,11,12-hexahydro-3-methoxy-11-methyl-, (4aS-(4aalpha,6beta,8aR*))- |
CAS | 357-70-0 |
InChI | InChI=1/C17H21NO3.ClH/c1-18-8-7-17-6-5-12(19)9-14(17)21-16-13(20-2)4-3-11(10-18)15(16)17;/h3-6,12,14,19H,7-10H2,1-2H3;1H/t12-,14-,17-;/m0./s1 |
Molecular Formula | C17H21NO3 |
Molar Mass | 287.35 |
Density | 1.0662 (rough estimate) |
Melting Point | 119-1210C |
Boling Point | 439.3°C at 760 mmHg |
Specific Rotation(α) | D20 -118.8° (c = 1.378 in ethanol) |
Flash Point | 219.5°C |
Solubility | Soluble in ethanol, acetone, chloroform, insoluble in benzene, ether, water |
Vapor Presure | 1.71E-08mmHg at 25°C |
Appearance | White or yellowish crystalline powder |
pKa | pKa 8.32 (Uncertain) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.5022 (estimate) |
MDL | MFCD00867189 |
Use | Galantamine, also known as Galantamine, is a white or yellowish crystalline powder. No smell, bitter taste. Melting point 127~129 ℃,[α]D20-118.8 (ethanol). Soluble in ethanol, acetone, chloroform, insoluble in benzene, ether, water. After reacting with ammonium molybdate solution, it is evaporated in water bath and added with sulfuric acid to show blue-green. Using purple Lycoris bulb as raw material, it is obtained by repeated extraction and refining with ethanol and chloroform under different acidity. Anticholinesterase drugs. It can be used for sequelae of polio and myasthenia gravis. |
Raw Materials | Ammonia Sodium carbonate Sulfuric acid Hydrogen bromide |
Downstream Products | O-DESMETHYLGALANTHAMINE |
Reference Show more | 1. Wear wisdom, Long Jun, Yu Lei Min, etc. Determination of main components in the bulbs of wild crenomata in Ningbo [J]. Natural product research and development, 2016, 25 (8):1238-1243. 2. Liu Xia, long Yuqing, Zeng Juan, Li can, Lang Peilei, Liu Xiangdan, Zhou Ribao. Simultaneous determination of three alkaloids in different parts of Lycoris aurea by HPLC [J]. Chinese traditional medicines, 2021,43(01):132-136. 3. [IF = 11.413] Sifan Luo et al."Rapid identification and isolation of neuraminidase inhibitors from mockstrawberry (Duchesnea indica.) based on ligand fishing combined with HR-ESI-Q-TOF-MS." Acta Pharm Sin B. 2020 Oct;10:1846 4. [IF = 5.491] Jiayu Zhou et al."Fungal endophytes promote the accumulation of Amaryllidaceae alkaloids in Lycoris radiata."Environ Microbiol. 2020 Apr;22(4):1421-1434 5. [IF=4.24] Nana Li et al."Characterization of phenolic compounds and anti-acetylcholinase activity of coconut shells."Food Biosci. 2021 Aug;42:101204 6. [IF=2.863] Chao Li et al."Extraction and purification of total flavonoids from Eupatorium lindleyanum DC. and evaluation of their antioxidant and enzyme inhibitory activities."Food Sci Nutr. 2021 May;9(5):2349-2363 7. [IF=5.118] Xin Wang et al."Simultaneous Inhibitory Effects of All-Trans Astaxanthin on Acetylcholinesterase and Oxidative Stress."Mar Drugs. 2022 Apr;20(4):247 |
The dangerous characteristic galantamine has a reversible effect on cholinesterase. Its pharmacological and toxicological effects are similar to physostigmine and neostigmine, but the effect is weak and the toxicity is also low. Mice oral LD50 18.7 mg/kg; Intraperitoneal injection of LD506.42 mg/kg; Intravenous injection of LD505.2 mg/kg ~ 8.0 mg/kg.
Use for neurological diseases and trauma caused by dyskinesia, multiple neuritis, radiculitis, etc.
Galantamine is an alkaloid extracted from Lycoris radiata or Lycoris radiata in the Amaryllidaceae family. It is a reversible anticholinesterase drug. It is easy to enter the brain tissue through the blood-brain barrier and has a strong effect on the central nervous system. It can improve the conduction between neuromuscles. Compared with physostigmine, neostigmine, and piristigmine, its treatment range is wide, its toxicity is small, and its muscarinic-like effect is weak and short. Clinically, galantamine is mainly used to treat myasthenia gravis, polio resting phase and sequelae. It is also used in children with cerebral palsy, polyneuritis, spinal radiculitis, and sensorimotor caused by neurological diseases or trauma Disorders etc.