HuagongsheHuagongshe Chemistry Print Report · For research reference only
Trifluoroacetic acid → (S)-2-(Adamantan-1-ylmethoxycarbonylamino)-3-{[5-(3-guanidino-3-oxo-propyl)-thiophene-2-carbonyl]-amino}-propionic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Trifluoroacetic acid | HCID 6422 | — |
| Reactant | (2s)-2-(1-Adamantylmethoxycarbonylamino)-3-((5-(2-(1,4,5,6-tetrahydropyrimidin-2-ylcarbamoyl)-ethyl)-thiophene-2-carbonyl)-amino)-propionic acid tert-butyl ester | HCID 69637241 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (S)-2-(Adamantan-1-ylmethoxycarbonylamino)-3-{[5-(3-guanidino-3-oxo-propyl)-thiophene-2-carbonyl]-amino}-propionic acid | HCID 10415384 | — |
Reaction Steps
117 mg (0.19 mmol) of the product obtained in step c) were dissolved in 5 ml of dichloromethane and stirred for 3 hours with 1 ml of trifluoroacetic acid under an inert gas atmosphere at room temperature. The solvents were removed in vacuo, and the residue was dissolved in acetic acid and again evaporated to dryness. This procedure was repeated once. The resinous residue was triturated with diethyl ether. After filtration 90 mg of a colourless amorphous powder were obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06566366B1 |
| Source dataset | uspto-grants-2003_05 |
| ORD ID | ord-b556143f01c244fbad846c6cfa134994 |
| Source note | uspto-grants-2003_05 |