(1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester
- Product Name
- (1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester
- CAS No.
- 229613-93-8
- Chemical Name
- (1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester
- Synonyms
- methyl (3aR,4R,6S,6aS)-4-[(2-methylpropan-2-yl)oxycarbonylamino]-3-pentan-3-yl-4,5,6,6a-tetrahydro-3aH-cyclopenta[d][1,2]oxazole-6-carboxylate;(1S-4R)-4-[[(1;Peramivir impurities5;Peramivir Impurity N1;Peramivir impurities 7;Peramivir Intermediate 2;Peramivir intermediate M8;6aS)-Methyl 4-(tert-butoxycarbonyl)-3-(pentan-3-yl)-4;6a-tetrahydro-3aH-cyclopenta[d]isoxazole-6-carboxylate;(1S,4R)-4-[[(1,1-diMethylethoxy)carbonyl]amino]- 2-Cyclopent...
- CBNumber
- CB82553360
- Molecular Formula
- C18H30N2O5
- Formula Weight
- 354.44
- MOL File
- 229613-93-8.mol
(1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester Property
- Melting point:
- 67-69°C
- Density
- 1.22±0.1 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- Chloroform (Sparingly), Methanol (Slightly)
- pka
- 11.61±0.60(Predicted)
- form
- Solid
- color
- Off-White to Pale Beige
- InChI
- InChI=1S/C18H30N2O5/c1-7-10(8-2)14-13-12(19-17(22)24-18(3,4)5)9-11(16(21)23-6)15(13)25-20-14/h10-13,15H,7-9H2,1-6H3,(H,19,22)/t11-,12+,13+,15+/m0/s1
- InChIKey
- WYUYCGDXMIJIAZ-KYEXWDHISA-N
- SMILES
- O1[C@]2([H])[C@@H](C(OC)=O)C[C@@H](NC(OC(C)(C)C)=O)[C@]2([H])C(C(CC)CC)=N1
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- D472890
- Product name
- (3aR,4R,6S,6aS)-4-[[(1,1-Dimethylethoxy)carbonyl]amino]-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-4H-cyclopent[d]isoxazole-6-carboxylicAcidMethylEster
- Packaging
- 1g
- Price
- $110
- Updated
- 2021/12/16
- Product number
- 8197CR
- Product name
- CID10522092
- Packaging
- 1g
- Price
- $73
- Updated
- 2021/12/16
- Product number
- 64529
- Product name
- (3aR,4R,6S,6aS)-4-[[(1,1-Dimethylethoxy)carbonyl]amino]-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-4H-cyclopent[d]isoxazole-6-carboxylicAcidMethylEster
- Packaging
- 1g
- Price
- $610
- Updated
- 2021/12/16
- Product number
- CM191020
- Product name
- (3aR,4R,6S,6aS)-Methyl4-((tert-butoxycarbonyl)amino)-3-(pentan-3-yl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[d]isoxazole-6-carboxylate
- Purity
- 95%
- Packaging
- 10g
- Price
- $102
- Updated
- 2021/12/16
- Product number
- A180683
- Product name
- (3aR,4R,6S,6aS)-Methyl4-((tert-butoxycarbonyl)amino)-3-(pentan-3-yl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[d]isoxazole-6-carboxylate
- Purity
- 95%
- Packaging
- 1g
- Price
- $10
- Updated
- 2021/12/16
(1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester Chemical Properties,Usage,Production
Uses
(3aR,4R,6S,6aS)-4-[[(1,1-Dimethylethoxy)carbonyl]amino]-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-4H-cyclopent[d]isoxazole-6-carboxylic Acid Methyl Ester is an intermediate used in the synthesis of peramivir (P285500), a neuraminidase inhibitor developed as an antiviral agent for the treatment of influenza.
Synthesis
316173-28-1
77-78-1
229613-93-8
1. (3aR,4R,6S,6aS)-4-((tert-butoxycarbonyl)amino)-3-(pentan-3-yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[d]isoxazole-6-carboxylic acid 2-methylpropan-2-ammonium salt (3210 g, 7.8 mol) was suspended in acetone (4000 g). 2. potassium carbonate (53.8 g) and 30% aqueous sodium hydroxide (containing 312 g sodium hydroxide) were added to the suspension. 3. 3000 ml of solvent was removed by evaporation, 3000 ml of acetone was added and 3000 ml of solvent was again removed by evaporation. This operation was repeated once, and finally 4000 ml of acetone was removed by evaporation to obtain a reaction solution essentially free of tert-butylamine odor. 4. Cool the reaction solution to 30-35°C and slowly add 1060 ml of dimethyl sulfate dropwise, controlling the rate of dropwise acceleration in order to keep the reaction temperature from exceeding 45°C. After the dropwise acceleration is completed, the reaction solution is added to the reaction solution. 5. After the dropwise addition, the reaction mixture was stirred at 40-45°C for 1.5 hours. 6. The reaction mixture was cooled to 15-20 °C, 1500 ml of 25% ammonia was added and stirred for 30 minutes. 7. After addition of 1500 ml of methanol, the reaction mixture was cooled to 0-5 °C. 8. 2240 ml of 25% ammonia was slowly added to the reaction mixture over 45 minutes. 9. The product was collected by filtration, washed with 3000 ml of water and dried under vacuum at 45-50 °C. 10. 2686.2 g of the target product was finally obtained in 97.13% yield.
References
[1] Patent: EP2186795, 2010, A1. Location in patent: Page/Page column 6; 11-12
(1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester Preparation Products And Raw materials
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View Lastest Price from (1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester manufacturers
- Product
- (1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester 229613-93-8
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%min
- Supply Ability
- 20ton
- Release date
- 2024-08-09
- Product
- (1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester 229613-93-8
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 99%min
- Supply Ability
- 20ton
- Release date
- 2024-08-09
- Product
- (1S-4R)-4-[[(1,1-diMethylethoxy)carbonyl]aMino]- 2-Cyclopentene-1-carboxylic acid Methyl ester 229613-93-8
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-09-30