Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | 3'-Hydroxyphenylacetic acid | HCID 12122 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Product | HCID 23440764 | HCID 23440764 | 94% |
Reaction Steps
To a solution of 3-hydroxyphenylacetic acid (3.04 g, 20 mmol) in dimethylformamide (30 mL) and 1-hydroxybenzotriazole (3.24 g, 24 mmol) at 0° C. under nitrogen was added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (4.60 g, 24 mmol). After 30 minutes, 1-aminonaphthyline (2.86 g, 20 mmol) was added, and the mixture was stirred overnight at room temperature. The reaction was quenched with 5% hydrochloride and extracted with ethyl acetate. The organic layer was washed with a 10% sodium carbonate solution, washed with brine, dried over MgSO4, filtered, and concentrated to provide the title compound (5.239 g, 94% yield): 1H NMR (DMSO-d6) 9.66 (br, 1H), 9.04 (s, 1H), 7.96 (dd, 1H), 7.85 (dd, 1H), 7.74 (dd, 1H), 7.68 (d, 1H), 7.18-7.49 (m, 3H), 7.16 (t, 1H), 6.92 (m 2H), 6.73 (d, 1H), 3.76 (s, 2H); ES-MS (m/z) 278 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06593322B1 |
|---|
| Source dataset | uspto-grants-2003_07 |
|---|
| ORD ID | ord-4b51a72649044565845297ebd4ef466e |
|---|
| Source note | uspto-grants-2003_07 |
|---|