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CAS No. : | 58574-03-1 | MDL No. : | MFCD00059078 |
Formula : | C13H10O3 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | JTGCXYYDAVPSFD-UHFFFAOYSA-N |
M.W : | 214.22 | Pubchem ID : | 301556 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
In acetic acid; | 4'-Hydroxy-4-biphenylcarboxylic acid (3) A stirred mixture of compound 2 (27.00 g, 0.118 mol) and hydronbromic acid (48% w/v, 350 ml) in glacial acetic acid (600 ml) was heated under reflux for 6 h. The cooled solution was poured into an ice/water mixture (1 l) and the resulting white precipitate was filtered off and washed with water until acid-free. Recrystallisation from glacial acetic acid afforded white crystals which were dried over potassium hydroxide in vacuo. Yield 20.00 g (795); mp>300 C. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
General procedure: A DMSO solution (3 mL) containing HoBt (121.8 mg, 0.902 mmol),DCC (186.1 mg, 0.902 mmol), and 2-(4-fluorophenyl) acetic acid(118.2 mg, 0.767 mmol) was stirred at 25 C. After stirring for 1 h, asolution of <strong>[139110-80-8]zanamivir</strong> (150.0 mg, 0.451 mmol) in DMSO (2 mL) andEt3N (0.13 mL) was slowly added to the above solution under nitrogenprotection and the solution stirred at 25 C for 24 h. The process wasmonitored by TLC. The crystals were filtered and washed on the filterwith water (2 mL). The filtrate was extracted with EtOAc and H2O(10 mL×3). The combined water layer was concentrated under reducedpressure and freeze-dried in lyophilizer for 24 h. The crudeproduct was purified by a column of Sephadex LH-20 (EtOH/H2O=5/95) to afford target product compound 45a. The synthesis and purificationsteps of 45b are similar to that of 45a. |