Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Cyclohexanesulfonyl chloride | HCID 237554 | — |
| Reactant | HCID 10733906 | HCID 10733906 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 10671584 | HCID 10671584 | 45.5% |
Reaction Steps
A solution of ethyl 3-[3-(2-aminoethyl)-5-(3-pyridylmethyl)phenyl]propanoate (Preparation 47; 0.60 g), cyclohexylsulphonyl chloride (0.526 g), triethylamine (0.194 g) and 4-dimethylaminopyridine (0.352 g) in dichloromethane (6 ml) was stirred at room temperature for 3 hours and then washed with water and dried (MgSO4). Evaporation under vacuum of the solvent gave a gum which was chromatographed on silica gel. Elution with dichloromethane, followed by a dichloromethane:methanol (97:3) mixture gave the title compound as a gum (401 mg); Rf 0.70 (SS 2); δ (CDCl3): 1.10-1.25(2H,m), 1.21(3H,t,J=7.1 Hz), 1.37-1.50(2H,m), 1.65-1.70(2H,m), 1.83-1.86(2H,m), 2.05-2.09(2H,m), 2.57(2H,t,J=7.7 Hz), 2.79(2H,t,J=6.9 Hz), 2.88 (2H,t,J=7.7 Hz), 3.30-3.37(2H,m), 3.91(2H,s), 3.99-4.02 (1H,m), 4.10(2H,q,J=7.1 Hz), 6.86(1H,s), 6.89(1H,s), 6.91(1H,s), 7.21-7.23(1H,m), 7.44(1H,d,J=7.9 Hz), 8.45-8.47(2H,m).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05705523 |
|---|
| Source dataset | uspto-grants-1998_01 |
|---|
| ORD ID | ord-165f3803b71c448b873c04f952ea5f39 |
|---|
| Source note | uspto-grants-1998_01 |
|---|