HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diisopropylethylamine → 4-[(S)-2-({5-[2-((S)-2-Cyclobutylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-4-(2H-tetrazol-5-yl)-butyryl]-piperazine-1-carboxylic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| 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 | 5-[2-((S)-2-Cyclobutylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carboxylic acid | HCID 66854695 | — |
| Reactant | 4-[(S)-2-Amino-4-(2H-tetrazol-5-yl)-butyryl]-piperazine-1-carboxylic acid ethyl ester | HCID 66854953 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 4-[(S)-2-({5-[2-((S)-2-Cyclobutylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-4-(2H-tetrazol-5-yl)-butyryl]-piperazine-1-carboxylic acid ethyl ester | HCID 44129136 | — |
Reaction Steps
To a solution of 126 mg 5-[2-((S)-2-cyclobutylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carboxylic acid in 2 ml DMF were added 160 μl DIPEA, 116 mg HATU and 130 mg 4-[(S)-2-amino-4-(2H-tetrazol-5-yl)-butyryl]-piperazine-1-carboxylic acid ethyl ester hydrotrifluoroacetate. After 30 minutes the reaction mixture was concentrated and the crude product obtained purified by preparative HPLC (C18 reverse phase column, elution with a water/MeCN gradient with 0.1% TFA). The fractions containing the product were lyophilized to yield the pure product. Yield: 29 mg
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08426420B2 |
| Source dataset | uspto-grants-2013_04 |
| ORD ID | ord-f237a287a87e4fe2a6bbb6389b4faaff |
| Source note | uspto-grants-2013_04 |