HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diisopropylethylamine → diethyl (14R,18R)-14-(((9H-fluoren-9-yl)methoxy)carbonylamino)-18-(dodecyloxy)-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 2733084 | — |
| Reactant | (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(((R)-2,3-bis(dodecyloxy)propyl)thio)propanoic acid | HCID 67400890 | — |
| Reactant | Diethyl 2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethylphosphonate | HCID 86667767 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | diethyl (14R,18R)-14-(((9H-fluoren-9-yl)methoxy)carbonylamino)-18-(dodecyloxy)-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonate | HCID 86678304 | — |
Reaction Steps
To a solution of (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(((R)-2,3-bis(dodecyloxy)propyl)thio)propanoic acid (1 eq) in DCM (0.1 M) was added diethyl 2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethylphosphonate (1.3 eq, from example 18, step 4), DIEA (2.5 eq) and HBTU (1.2 eq). The reaction mixture was then stirred at room temperature for 2 hours. The mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-10% MeOH/DCM to give the product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08808703B2 |
| Source dataset | uspto-grants-2014_08 |
| ORD ID | ord-daf5a2417a8d433db9b39c861973a471 |
| Source note | uspto-grants-2014_08 |