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CAS No. : | 87691-27-8 | MDL No. : | MFCD02094406 |
Formula : | C10H17NO5 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | BENKAPCDIOILGV-BQBZGAKWSA-N |
M.W : | 231.25 | Pubchem ID : | 688614 |
Synonyms : |
|
Chemical Name : | (2S,4S)-1-(tert-Butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
550 mg | To an ice cooled mixture of Sodium hydride (228 mg, 5.71 mmol)(prewashed with hexanes) and DMF (10 mL) was added (2S,4S)-l-(tert- butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylic acid (600 mg, 2.59 mmol) as a solid in one portion. The formed slurry was stirred at this temperature for 30 min before addition of iodomethane (0.485 mL, 7.78 mmol) dropwise. The final reaction mixture was stirred at rt overweekend. Poured into water (100 mL), extracted with EtOAc (20 mL, X2). The combined organic layer was washed with water and brine, dried over MgS04, filtered, evaporated in vacuo. The residue was purified by FCC (0% to 50% EtOAc-Hexanes) to afford Cap W-19 Step A (550 mg) as a colorless oil. NMR (500MHz, CD3OD) δ 4.38 (td, J=8.6, 3.2 Hz, 1H), 3.99 (dt, J=5.1, 2.4 Hz, 1H), 3.81 - 3.68 (m, 3H), 3.64 - 3.53 (m, 1H), 3.50 - 3.40 (m, 1H), 2.45 - 2.21 (m, 2H), 1.55 - 1.40 (m, 9H) |
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