9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
- CAS NO.:118909-22-1
- Empirical Formula: C17H18N2O5
- Molecular Weight: 330.34
- MDL number: MFCD00069287
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-12 15:22:20
What is 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE?
Originator
Velnacrine maleate SM 10.888,Hoechst-Roussel (Aventis) Sumitimo JPN
The Uses of 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
A potential Alzheimer Disease therapeutic of low toxicity. Exhibits biochemical and pharmacological profile similar to THA except that it is far less toxic and without measurable liver toxicity in humans
The Uses of 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
A potential Alzheimer's Disease therapeutic of low toxicity. Exhibits biochemical and pharmacological profile similar to THA except that it is far less toxic and without measurable liver toxicity in humans.
The Uses of 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
Cholinesterase inhibitor. Potential Alzheimer's disease therapeutic
Manufacturing Process
In 100 ml of tetrahydrofuran was added 5.00 g of 9-amino-3,4-dihydroacridin- 1(2)-one. The mechanically stirred suspension was cooled to -5°C and 21.4 ml (1 eq.) of 1.1 M LiAlH 4 solution in ether was added dropwise. After completion of the addition, the reaction mixture was stirred further for 2 hours, whereupon the reaction complete based on thin chromatography analysis. The LiAlH 4 was neutralized with 2 ml of saturated NH 4 Cl and the salts were dissolved with 30% potassium hydroxide. The insoluble product was filtered off and rinsed with water. The precipitate was then dissolved in 3 N hydrochloric acid and the residual insoluble salts filtered off. The acid solution washed with ethyl acetate and made basic (pH 9) with 10% sodium hydroxide. The precipitated product was filtered and washed with water. After drying at 80°C under vacuum overnight, 4.15 g (82%) of (+/-)-9-amino- 1,2,3,4-tetrahydro-1-acridinol was obtained, melting point 245°C. (+/-)-9- Amino-1,2,3,4-tetrahydro-1-acridinol maleate has melting point 171-173°C.
brand name
Mentane (Hoechst-Roussel).
Therapeutic Function
Cholinesterase inhibitor, Cognition activator
Biological Activity
hydroxytacrine maleate, a bioactive monohydroxylated metabolite of cholinesterase inhibitor, is a potential alzheimer's therapeutic of low toxicity [1]. hydroxytacrine maleate exhibited biochemical and pharmacological profile similar to tacrine (tha) except that the far less liver toxicity in humans. the prolonged use of tacrine has been associated with liver toxicity[1, 2].hydroxytacrine maleate is a parasympathomimetic and a centrally acting cholinesterase inhibitor (anticholinesterase). as the first cholinesterase inhibitor approved for the treatment of ad, tacrine was marketed under the trade name cognex [3]. through hydroxylation of benzylic carbon by cyp450 in the liver, tacrine has been metabolized into metabolite 1-hydroxy-tacrine (velnacrine) [4]. it has also been shown that maleate is an inhibitor of ache [5].
References
[1]. d. muoz-torrero. acetylcholinesterase inhibitors as disease-modifying therapies for alzheimer’s disease. curr. med. chem. 15, 2433-2455 (2008).
[2]. e. giacobini. cholinesterase inhibitors for alzheimer’s disease therapy: from tacrine to future applications. neurochemistry international 32, 413-419(1998).
[3]. birks j s. cholinesterase inhibitors for alzheimer's disease[j]. the cochrane library, 2006.
[4]. peng j z, remmel r p, sawchuk r j. inhibition of murine cytochrome p4501a by tacrine: in vitro studies[j]. drug metabolism and disposition, 2004, 32(8): 805-812.
[5]. acetylcholine and choline effects on erythrocyte nitrite and nitrate levels.
Properties of 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
Melting point: | 171-173 |
storage temp. | Sealed in dry,2-8°C |
solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) |
form | White solid. |
color | Pale Beige to Beige |
Stability: | Store in freezer at -20°C |
Safety information for 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 9-AMINO-1,2,3,4-TETRAHYDRO-ACRIDIN-1-OL, MALEATE
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