HuagongsheHuagongshe Chemistry Print Report · For research reference only
Oxalyl chloride → HCID 69949079, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Oxalyl chloride | HCID 65578 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Benzoic acid,3-chloro-5-[2-[[(1,1-dimethylethoxy)carbonyl]-4-pyridinylamino]ethoxy]- | HCID 18348849 | — |
| Reactant | HCID 18349042 | HCID 18349042 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 69949079 | HCID 69949079 | 25.6% |
Reaction Steps
2M Oxalyl chloride solution in dichloromethane (0.11 ml), and dry DMF (0.005 ml) were added to a stirred suspension of 3-[2-(tert-butoxycarbonyl-pyridin-4-yl-amino)-ethoxy]-5-chloro-benzoic acid (0.067 g) in dry dichloromethane (1 ml) under nitrogen. After 10 min, DIPEA (0.100 ml) was added followed after a further 40 min by phenyl-(3-tetrazol-2-yl-propyl)-amine (0.033 g) and DMAP (0.004 g). After 7 days the solvent was evaporated and the residue was purified by flash chromatography, eluting with dichloromethane:methanol (98:2 v/v) to give the title compound as a pale yellow oil (0.024 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06326386B1 |
| Source dataset | uspto-grants-2001_12 |
| ORD ID | ord-4bcd220bc03848788401c958f750cf4f |
| Source note | uspto-grants-2001_12 |