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CAS No. : | 13122-90-2 | MDL No. : | MFCD00190824 |
Formula : | C23H28N2O5 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | NNOBHAOOLCEJBL-OALUTQOASA-N |
M.W : | 412.48 | Pubchem ID : | 7019052 |
Synonyms : |
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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 |
---|---|---|
71% | With sodium hydroxide; In 1,4-dioxane; water; at 0 - 20℃; for 3.5h; | A solution of (Boc) 20 (800 mg, 3.5 mmol) in 1,4-dioxane (5 ML) was added to a cold (0 C) solution OF DI-L-PHE-PHE (1 g, 3.20 mmol) in 1,4-dioxane (6 mL) and 1N NAOH (3.3 mL). The mixture was stirred at 0-5 C FOR 2 hours. Another portion of (BOC) 20 (100 mg) was added and the mixture was stirred for an additional 60 minutes at 0-5 C then at room temperature for 30 minutes. The mixture was then evaporated to dryness. The solid was taken in a mixture of water/EtOAc and pH was adjusted to 2 with 2N HCI. The aqueous layer was extracted 3 times with EtOAc. The combined organic layers were dried with brine and the solvent was evaporated. Some solid was insoluble in a mixture of EtOAc/CHC13 : it was removed by filtration. The desired N Boc-L-Phe-L-Phe 1 was obtained as a white foamy solid (913.7 mg, 2.215 mmol, 71% yield). |