Boc-L-Glutamic acid 5-benzylester
- Product Name
- Boc-L-Glutamic acid 5-benzylester
- CAS No.
- 13574-13-5
- Chemical Name
- Boc-L-Glutamic acid 5-benzylester
- Synonyms
- BOC-GLU(OBZL)-OH;(S)-5-(benzyloxy)-2-((tert-butoxycarbonyl)aMino)-5-oxopentanoic acid;BOC-L-GLU(OBZL)-OH;BOC-L-GLUTAMIC ACID 5-BENZYL ESTER;Boc-Glu(Bzl)-OH;BOC-CLU(OBZL)-OH;BOC-L-GLU(BZL)-OH;Boc-Glu(Obzl)-OH ,98%;BOC-GLUTAMIC ACID(OBZL)-OH;BOC-L-GLUTAMIC ACID (OBZL)
- CBNumber
- CB6748119
- Molecular Formula
- C17H23NO6
- Formula Weight
- 337.37
- MOL File
- 13574-13-5.mol
Boc-L-Glutamic acid 5-benzylester Property
- Melting point:
- 69-71 °C
- alpha
- -16 º (c=2, DMF)
- Boiling point:
- 473.68°C (rough estimate)
- Density
- 1.1452 (rough estimate)
- refractive index
- -16.5 ° (C=2, DMF)
- storage temp.
- 2-8°C
- solubility
- Soluble in N,N- Dimethyl formamide.
- pka
- 3.81±0.10(Predicted)
- form
- powder to crystal
- color
- White to Almost white
- optical activity
- [α]20/D 5.5±0.5°, c = 1% in acetic acid
- BRN
- 2226572
- Sequence
- Boc-Glu(OBzl)
- CAS DataBase Reference
- 13574-13-5(CAS DataBase Reference)
- EPA Substance Registry System
- L-Glutamic acid, N-[(1,1-dimethylethoxy)carbonyl]-, 5-(phenylmethyl) ester (13574-13-5)
- CAS Number Unlabeled
- 56-86-0
- CAS Number Unlabeled
- 13574-13-5
Safety
- Safety Statements
- 22-24/25
- WGK Germany
- 3
- TSCA
- Yes
- HS Code
- 29242990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
N-Bromosuccinimide Price
- Product number
- 8.53010
- Product name
- Boc-Glu(OBzl)-OH
- Purity
- (cryst) Novabiochem<SUP>®</SUP>
- Packaging
- 25 g
- Price
- $112
- Updated
- 2025/07/31
- Product number
- 8.53010
- Product name
- Boc-Glu(OBzl)-OH
- Purity
- (cryst) Novabiochem<SUP>®</SUP>
- Packaging
- 100 g
- Price
- $286
- Updated
- 2025/07/31
- Product number
- 8.53010
- Product name
- Boc-Glu(OBzl)-OH
- Purity
- (cryst) Novabiochem<SUP>®</SUP>
- Packaging
- 1 kg
- Price
- $1950
- Updated
- 2025/07/31
- Product number
- 15418
- Product name
- Boc-Glu(OBzl)-OH
- Purity
- ≥98.0% (T)
- Packaging
- 25g
- Price
- $89.3
- Updated
- 2025/07/31
- Product number
- B1633
- Product name
- 5-Benzyl N-(tert-Butoxycarbonyl)-L-glutamate
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 5g
- Price
- $36
- Updated
- 2025/07/31
Boc-L-Glutamic acid 5-benzylester Chemical Properties,Usage,Production
Chemical Properties
white to off-white powder
Uses
N-Boc-L-glutamic acid 5-benzyl ester is used as a pharmaceutical intermediate.
reaction suitability
reaction type: Boc solid-phase peptide synthesis
Synthesis
1676-73-9
24424-99-5
13574-13-5
The general procedure for the synthesis of Boc-L-glutamic acid-O-benzyl from L-glutamic acid-5-benzyl ester and di-tert-butyl dicarbonate is as follows: Example 28 - Preparation of Formula 125-Compound 28a-Intermediate B: (S)-5-(benzyloxy)-2-(tert-butoxycarbonyl)-5-oxopentanoic acid 1. Compound A (5.0 g, 21.1 mmol) was dissolved in a solvent mixture of dioxane and water (1:1, 40 mL) and cooled at 0°C. 2. Boc2O (5.06 g, 23.1 mmol) was added to the above solution, followed by stirring the reaction mixture at room temperature overnight. 3. After completion of the reaction, the solvent was removed by distillation under reduced pressure. 4. The residue was diluted with water (30 mL) and alkalized with Na2CO3 (0.7 g). 5. The aqueous layer was washed with EtOAc (3 x 20 mL). 6. The pH of the aqueous layer was adjusted to 2-3 with 5 M aqueous HCl followed by extraction with EtOAc (4 x 50 mL). 7. The organic extracts were combined, washed with brine and dried with Na2SO4. 8. The solvent was removed under pressure to give (S)-5-(benzyloxy)-2-(tert-butoxycarbonyl)-5-oxovaleric acid (7.1 g, 100%) as a viscous colorless oil. Product characterization: LC-MS (Agilent): retention time (Rt) 3.40 min; m/z calculated value C17H23NO6 [M + Na]+ 360.15, measured value 360.1.
References
[1] Patent: WO2012/63085, 2012, A2. Location in patent: Page/Page column 115
[2] Patent: US2013/225594, 2013, A1. Location in patent: Paragraph 0425; 0426
[3] Synthetic Communications, 1990, vol. 20, # 15, p. 2235 - 2249
[4] Bioorganic and Medicinal Chemistry, 2005, vol. 13, # 2, p. 501 - 517
[5] Organic Syntheses, 1985, vol. 63, p. 160 - 160
Boc-L-Glutamic acid 5-benzylester Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Boc-L-Glutamic acid 5-benzylester manufacturers
- Product
- Boc-Glu(OBzl)-OH 13574-13-5
- Price
- US $0.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 500kgs
- Release date
- 2021-09-24
- Product
- Boc-glu(obzl)-oh 13574-13-5
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 97.3%
- Supply Ability
- 100 tons
- Release date
- 2022-01-25
- Product
- Boc-L-Glutamic acid 5-benzylester 13574-13-5
- Price
- US $7.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100kg
- Release date
- 2018-12-24