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CAS No. : | 4224-70-8 | MDL No. : | MFCD00004422 |
Formula : | C6H11BrO2 | Boiling Point : | - |
Linear Structure Formula : | Br(CH2)5COOH | InChI Key : | NVRVNSHHLPQGCU-UHFFFAOYSA-N |
M.W : | 195.05 | Pubchem ID : | 20210 |
Synonyms : |
|
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P280-P305+P351+P338-P310 | UN#: | 3261 |
Hazard Statements: | H314 | Packing Group: | Ⅱ |
GHS Pictogram: |
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* 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 |
---|---|---|
0.37 g | suspension of 1,38 g (1,0 mmol) of 8-((4-methoxyphenyl)(phenyl)(p- polystyryl)methylthio)octanoic acid in 10 ml DMF were treated twice with 140 mg HOBt and 125 mg DIC. The obtained resin was washed 5X with 6 ml DMF and filtered. Then a solution of <strong>[6070-59-3]tert-butyl 2-amino-3-methylbutanoate</strong> [obtained by the alkaline extraction of 420 mg (2,0 mmol) of <strong>[6070-59-3]tert-butyl 2-amino-3-methylbutanoate</strong> hydrochloride] in 4 ml DMF was added and the mixture was shacked for 3 h at RT. The resin was filtered and washed 3X DMF and 6X DCM. The resin was then treated 6Xwith 5 ml of 1,5% TFA inDCM and the combined filtrates were extracted with water and brine and the DCM solution was concentrated in the RE. The obtained oil was dissolved in 5 ml DMF and to the obtained solution 260 mg DIPEA and 195 mg 6-bromohexanoic acid in 5 ml DMF were added at 5oC. The mixture was stirred for additional 1 h at 5oC and 3 h at RT. Then 260 mg DIPEA and 254 mg 3-aminopropane-1 thiol hydrochloride (cysteaminehydrochloride) were added and the mixture was stirred for additional 2 h at RT. To the obtained DMF solution was then added EtAc and brine and the EtAc layer was extracted 3X with 5%-citric acid and water, the organic layer was dryed over anhydrous Na2SO4 and concentrated in the RE. Yield: 0,37 g of a yellowish oil (83%). |
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