HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Piperazinecarboxylic acid, ethyl ester → HCID 66856358, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Piperazinecarboxylic acid, ethyl ester | HCID 8431 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 9886157 | — |
| Reactant | HCID 66856998 | HCID 66856998 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 66856358 | HCID 66856358 | — |
Reaction Steps
To a solution of 190 mg (R)-2-({5-[2-((S)-2-Cyclobutylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-propionic acid in 3 ml DMF were added 0.27 ml DIPEA, 150 mg HATU and 0.06 ml 1-ethoxycarbonylpiperazine. After stirring for 1 h it was diluted with dichlormethane and extracted with aqueous LiCl (4% w/w), aqueous NaHCO3 and 0.1 M HCl. The crude product obtained after evaporation of the solvent was purified by preparative HPLC (C18 reverse phase column, elution with a water/MeCN gradient with 0.1% TFA) to give the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08426420B2 |
| Source dataset | uspto-grants-2013_04 |
| ORD ID | ord-5185163bb6b0482bbed54cd31a451de5 |
| Source note | uspto-grants-2013_04 |