Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 2-Ethoxybenzoyl chloride | HCID 3016397 | — |
| Reactant | (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene | HCID 53960413 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 53886633 | HCID 53886633 | 65% |
Reaction Steps
To an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (10 mg, 0.43 mmol) and triethylamine (90 μL, 0.65 mmol) in methylene chloride (15 mL) was added dropwise 2-ethoxybenzoyl chloride (84 mg, 0.45 mmol) in methylene chloride (5 mL). After the addition, the reaction was allowed to stir at ambient temperature for 15 min and was then washed with water. The phases were separated and the organic phase was dried (Na2SO4), filtered and evaporated in vacuo to give a crude product which was purified on a silica gel column using chloroform/ethanol saturated with NH3 (100:3) as the eluent. Yield: 110 mg (64%) of the title compound as white solid: [α]21D -36° (c 1.0, chloroform); EIMS (70 eV) m/z (relative intensity) 393 (15, M+). The hydrochloride salt was precipitated out of diethyl ether and 110 mg (59% yield) of white crystals were isolated; mp sinters at 176° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06124283 |
|---|
| Source dataset | uspto-grants-2000_09 |
|---|
| ORD ID | ord-9fa8a72aa480468ab0ff32a16d1088d0 |
|---|
| Source note | uspto-grants-2000_09 |
|---|