HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 131725208, compound → HCID 69139506, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 131725208 | HCID 131725208 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 69139506 | HCID 69139506 | 21% |
Reaction Steps
A solution of 100 mg (0.149 mmol) of the compound of example 9 in 6N hydrochloric acid and THF was heated at 60° C. for 4 h. The THF was removed in vacuo and the residue was freeze-dried. Following purification by means of preparative HPLC, chromatography over silica gel using dichloromethane/methanol/acetic acid/water (9.5/0.5/0.05/0.05), concentrating the product fractions and freeze-drying in the presence of 2N hydrochloric acid, 20 mg (21%) of the title compound were obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06962937B2 |
| Source dataset | uspto-grants-2005_11 |
| ORD ID | ord-4d225b121f24413c82a306cf31e3ff46 |
| Source note | uspto-grants-2005_11 |