Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 24830-94-2 | MDL No. : | MFCD00004526 |
Formula : | C4H9NO3 | Boiling Point : | - |
Linear Structure Formula : | CO2HCHNH2CHOHCH3 | InChI Key : | - |
M.W : | 119.12 | Pubchem ID : | - |
Synonyms : |
|
Chemical Name : | (2R,3R)-2-Amino-3-hydroxybutanoic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319 | 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 |
---|---|---|
63% | Example 3; 2-chloro-4-((1R,2R)-2-hydroxy-1-(5-phenyl-1,3,4-oxadiazol-2-yl)propylamino)-3-methylbenzonitrile; Intermediate 3a; (2R,3R)-2-(3-Chloro-4-cyano-2-methylphenylamino)-3-hydroxybutanoic acid; <strong>[796600-15-2]2-Chloro-4-fluoro-3-methylbenzonitrile</strong> (1.19 g, 7.00 mmol) was mixed together with H-D-allo-Thr-OH (1.0 g, 8.40 mmol) in DMSO (15 mL). K2CO3 (1.93 g, 13.99 mmol) was added to the reaction mixture and stirred at 75 C. for 24 h. Then the reaction mixture was cooled down to room temperature and poured slowly into a 10% citric acid solution and stirred for 10 min at room temperature. The solution was extracted with EtOAc several times to get the crude product. The crude product was chromatographed on silica gel with a gradient of hexanes/EtOAc and then with EtOAc, 100% to get the purified final product (1.20 g, 63%). 1H NMR (500 MHz, Acetone-d6, delta in ppm) 7.47 (d, J=9 Hz, 1H), 6.73 (d, J=9 Hz, 1H), 5.48 (d, J=9 Hz, 1H), 4.26 (m, 2H), 2.28 (s, 3H), 1.32 (d, J=6 Hz, 3H). |