HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diisopropylethylamine → (S)-tert-butyl (1-((2-(2-(2-(diethoxyphosphoryl)ethoxy)ethoxy)ethyl)amino)-1-oxopropan-2-yl)carbamate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Tert-butoxycarbonylalanine | HCID 85082 | — |
| Reactant | Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 2733084 | — |
| Reactant | Diethyl 2-(2-(2-aminoethoxy)ethoxy)ethylphosphonate | HCID 86667777 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (S)-tert-butyl (1-((2-(2-(2-(diethoxyphosphoryl)ethoxy)ethoxy)ethyl)amino)-1-oxopropan-2-yl)carbamate | HCID 86678316 | — |
Reaction Steps
To a solution of (S)-2-((tert-butoxycarbonyl)amino)propanoic acid (1 eq) and HBTU (1.2 eq) in DCM (0.06 M) was added DIEA (3.5 eq), followed by diethyl (2-(2-(2-aminoethoxy)ethoxy)ethyl)phosphonate (1.2 eq, from example 5, step 3). The reaction was stirred at room temperature for 2 hours. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-5% MeOH/DCM to give the title product as a colorless viscous oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08808703B2 |
| Source dataset | uspto-grants-2014_08 |
| ORD ID | ord-c4c5031c4dbc4d37920c6daa207cf7eb |
| Source note | uspto-grants-2014_08 |