HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (2-Fluoro-4-iodo-phenyl)-(4-[1,2,4]oxadiazol-5-yl-pyridin-3-yl)-amine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Lithium Hydroxide | HCID 3939 | — |
| Reactant | 5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-[1,2,4]oxadiazole-3-carboxylic acid ethyl ester | HCID 59026792 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Oxolane--water (1/1) | HCID 21881883 | — |
| Product | (2-Fluoro-4-iodo-phenyl)-(4-[1,2,4]oxadiazol-5-yl-pyridin-3-yl)-amine | HCID 59026781 | 92.5% |
Reaction Steps
To a solution of 5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-[1,2,4]oxadiazole-3-carboxylic acid ethyl ester (1.8 g, 3.96 mmol) in THF-H2O (1:1)(20 mL) LiOH (0.19 g, 7.93 mmL) was added. The reaction mixture was stirred for 2 hrs at RT. The pH was adjusted to 5 with 1N HCl and the mixture was diluted with water. A solid precipitated and was filtered to give the product (1.4 g). LC/MS (Method A) [4.39 min; 383(M+1)]
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08076486B2 |
| Source dataset | uspto-grants-2011_12 |
| ORD ID | ord-4b4392be67ac4154a3a6ba3709508e6e |
| Source note | uspto-grants-2011_12 |