HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Hydroxybenzotriazole → HCID 59620370, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | N-((1,1-dimethylethoxy)carbonyl)-2-methyl-alanine | HCID 2733845 | — |
| Reactant | D-Leucine Methyl Ester Hydrochloride | HCID 11600782 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Triethylamine | HCID 8471 | — |
| Product | HCID 59620370 | HCID 59620370 | — |
Reaction Steps
2-(tert-Butoxycarbonylamino)-2-methylpropanoic acid (22.4 g) and D-leucine methyl ester hydrochloride (20.0 g) were dissolved in N,N-dimethylformamide (224 mL), and triethylamine (11.1 g) was added dropwise thereto under cooling on ice. To the mixture were sequentially added 1-hydroxybenzotriazole (14.9 g) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (19.1 g), and stirring was performed for two hours. Water (224 mL) was added to the reaction mixture, and the formed precipitates were recovered through filtration, whereby the title compound (57.8 g) was yielded as wet crystals.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08501772B2 |
| Source dataset | uspto-grants-2013_08 |
| ORD ID | ord-f83237c7c74b45268611a45b3f95de21 |
| Source note | uspto-grants-2013_08 |