HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diisopropylethylamine → (15R,19R)-tert-butyl15-(benzyloxycarbonylamino)-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oate
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 | tert-Butyl 12-amino-4,7,10-trioxadodecanoate | HCID 16218573 | — |
| Reactant | (R)-2-(benzyloxycarbonylamino)-3-((R)-2,3-bis(decylcarbamoyloxy)propylthio) propanoic acid | HCID 67400537 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (15R,19R)-tert-butyl15-(benzyloxycarbonylamino)-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oate | HCID 86678324 | — |
Reaction Steps
To a solution of (R)-2-(benzyloxycarbonylamino)-3-((R)-2,3-bis(decylcarbamoyloxy)propylthio)propanoic acid (15, 1 eq) and HBTU (1.2 eq) in DCM (0.06 M) was added DIEA (2.4 eq), followed by tert-butyl 3-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)propanoate (1.2 eq). The reaction was stirred at room temperature for 4 hours. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using a gradient of 0-100% EtOAc/Hex to afford the title compound as an off-white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08808703B2 |
| Source dataset | uspto-grants-2014_08 |
| ORD ID | ord-a6aac0c1164b40ebb956789929a8168e |
| Source note | uspto-grants-2014_08 |