HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 1-[(1-Hydroxy-naphthalene-2-carbonyl)-amino]-cyclopentanecarboxylic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 1-Hydroxy-2-naphthoic acid | HCID 6844 | — |
| 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 | Methyl 1-amino-1-cyclopentanecarboxylate, HCl | HCID 11513856 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1-[(1-Hydroxy-naphthalene-2-carbonyl)-amino]-cyclopentanecarboxylic acid methyl ester | HCID 58370121 | 43% |
Reaction Steps
1.00 g 1-amino-cyclopentanecarboxylic acid methyl ester hydrochloride, 0.698 g 1-hydroxy-2-naphthoic acid, 2.12 g HATU and 1.94 ml N,N′diisopropyl-ethylamine in 40 ml of dimethylformamide were stirred at 65° C. for 1 hour, followed by room temperature for 2 days. Water was added and the mixture was extracted with diethyl ether three times. The combined organic layers were dried with magnesium sulfate and concentrated in vacuo. Purification by flash chromatography on silica with heptane/ethyl acetate afforded 0.5 g of 1-[(1-Hydroxy-naphthalene-2-carbonyl)-amino]-cyclopentanecarboxylic acid methyl ester.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08283479B2 |
| Source dataset | uspto-grants-2012_10 |
| ORD ID | ord-01d4f52d2d6140888dbc2ed153171494 |
| Source note | uspto-grants-2012_10 |