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CAS No. : | 72040-64-3 | MDL No. : | MFCD00144853 |
Formula : | C16H27N3O4S | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | CMUGHZFPFWNUQT-HUBLWGQQSA-N |
M.W : | 357.47 | Pubchem ID : | 446905 |
Synonyms : |
|
Chemical Name : | 6-(5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)hexanoic acid |
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-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 |
---|---|---|
58.3% | With lithium hydroxide monohydrate; In methanol;Reflux; | Lithium hydroxide (4equiv) solution was added to 6 (1equiv) dissolved in methanol. The solution was heated to reflux overnight. The product 7 was precipitated as white solid. Then a hydrochloric acid solution (6 N) was added until the pH was 5. The product was filtered, and dried under vacuum. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
39% | With dmap; diisopropyl-carbodiimide; In N,N-dimethyl-formamide; at 20℃; for 48h;Inert atmosphere; | General procedure: To a mixture of Biotin or 6-biotinylaminocaproic acid (0.3 mmol), camptothecin analogues (0.1 mmol) and DMF (2.5 mL) was added, 4-Dimethylaminopyridine (DMAP) (0.01 mmol) was added and N, N'-Diisopropylcarbodiimide) (DIC) (0.6 mmol) dropwise. The reaction mixture was stirred at room temperature for 2 days under N2. Solvent were removed under a reduced. The residue was purified on a silica gel chromatography (CHCl3:CH3OH = 15:1?9:1) to afford the product Biotin-(20s)-camptothecin (11). Yellow amorphous powder, yield 60percent; |
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