Identification | More | [Name]
BOC-SER-OH | [CAS]
59524-02-6 | [Synonyms]
BOC-L-SER BOC-L-SERINE BOC-L-SERINE BENZYL ESTER BOC-L-SER-OBZL BOC-L-SER-OH BOC-SERINE BOC-SERINE-OBZL BOC-SERINE-OH BOC-SER-OBZL BOC-SER-OH N-ALPHA-T-BOC-L-SERINE N-ALPHA-T-BUTOXYCARBONYL-L-SERINE ALPHA-BENZYL ESTER N-ALPHA-T-BUTYLOXYCARBONYL-L-SERINE BENZYL ESTER N-ALPHA-TERT-BUTYLOXYCARBONYL-L-SERINE N-ALPHA-TERT-BUTYLOXYCARBONYL-L-SERINE BENZYL ESTER N-BOC-L-SERINE N-T-BUTOXYCARBONYL-L-SERINE N-(TERT-BUTOXYCARBONYL)-L-SERINE N-tert-Butoxycarbonyl-L-serine benzyl ester | [EINECS(EC#)]
221-867-3 | [Molecular Formula]
C8H15NO5 | [MDL Number]
MFCD00037243 | [Molecular Weight]
205.21 | [MOL File]
59524-02-6.mol |
Chemical Properties | Back Directory | [Melting point ]
91 °C (dec.)(lit.) | [Boiling point ]
458.8±40.0 °C(Predicted) | [density ]
1.174±0.06 g/cm3(Predicted) | [storage temp. ]
2-8°C
| [solubility ]
DMSO (Slightly), Methanol (Slightly), Water (Slightly) | [form ]
Powder | [pka]
10.67±0.46(Predicted) | [color ]
White | [Water Solubility ]
Slightly soluble in water. | [InChIKey]
BQADRZHPZVQGCW-LBPRGKRZSA-N | [CAS DataBase Reference]
59524-02-6(CAS DataBase Reference) |
Hazard Information | Back Directory | [Chemical Properties]
White powder | [Uses]
It is a pharmaceutical intermediate. It is involved in Mitsunobu Reactions. | [Synthesis]
GENERAL STEPS: To a stirred solution of N-Boc-L-serine (4.87 mmol) in DMF (100 mL) was added cesium carbonate (5.11 mmol) and stirring was continued for 30 minutes. Benzyl bromide (5.84 mmol) was then added and the reaction mixture was stirred for 12 hours. After completion of the reaction, the reaction mixture was diluted with ethyl acetate (25 mL) and washed sequentially with aqueous lithium bromide (3 × 15 mL), aqueous sodium bicarbonate (2 × 15 mL) and saturated saline (2 × 15 mL). The organic layer was dried with anhydrous sodium sulfate and concentrated under reduced pressure to remove the solvent. The crude product was purified by fast chromatography (eluent: petroleum ether/ether = 1:1) to afford Boc-L-serine benzyl ester (100% yield) as a white solid. rf = 0.26 (petroleum ether/ether = 1:1).
To a stirred solution of N-Boc-L-serine (2.44 mmol) in DMF (50 mL) was added cesium carbonate (2.56 mmol) and stirring was continued for 30 min. Benzyl bromide (2.92 mmol) was then added and the reaction mixture was stirred for 12 hours. After completion of the reaction, the reaction mixture was diluted with ethyl acetate (15 mL) and washed sequentially with aqueous lithium bromide (3 × 10 mL), aqueous sodium bicarbonate (2 × 10 mL) and saturated saline (2 × 10 mL). The organic layer was dried with anhydrous sodium sulfate and concentrated under reduced pressure to remove the solvent. The crude product was purified by fast chromatography (eluent: petroleum ether/ether = 1:1) to give Boc-L-serine benzyl ester (100% yield) as a white solid. rf = 0.26 (petroleum ether/ether = 1:1). | [References]
[1] Bioorganic and Medicinal Chemistry Letters, 2003, vol. 13, # 20, p. 3401 - 3404 [2] Patent: WO2005/41899, 2005, A2. Location in patent: Page/Page column 94; 102-103 [3] Patent: WO2005/41899, 2005, A2. Location in patent: Page/Page column 94; 102-103 [4] Journal of the American Chemical Society, 2012, vol. 134, # 45, p. 18809 - 18815 [5] Patent: US2017/158720, 2017, A1. Location in patent: Paragraph 0114; 0115; 0171; 0172 |
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