Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethylene Glycol | HCID 174 | — |
| Reactant | Calcium Hydroxide | HCID 6093208 | — |
| Reactant | p-Tert-butyl-n-[6-chloro-5-(2-methoxyphenoxy)-2-(2-pyrimidinyl)-4-pyrimidinyl]benzenesulfonamide potassium salt | HCID 86650086 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | Bosentan | HCID 104865 | — |
| Product | Bosentan Calcium | HCID 66865255 | — |
Reaction Steps
10 gms of p-tert-butyl-N-[6-chloro-5-(2-methoxy-phenoxy)-[2,2′-bipyrimidin]-4-yl]benzenesulfonamide potassium salt and calcium hydroxide (14.5 gms) were charged to a reaction vessel. Ethylene glycol (30 ml) and toluene (100 ml) were added to the vessel. The reaction mass was heated at a temperature of 100° C. for 5 hours or until the reaction was complete. The resulting suspension was cooled to 25° C., filtered and isolated as the calcium salt of bosentan.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08481730B2 |
|---|
| Source dataset | uspto-grants-2013_07 |
|---|
| ORD ID | ord-9a7bec7d03a34148a6dbe78d3a23f881 |
|---|
| Source note | uspto-grants-2013_07 |
|---|
