HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 6-Methoxy-7-((piperidin-4-yl)methoxy)-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one hydrochloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | tert-Butyl 4-(((6-methoxy-4-oxo-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-7-yl)oxy)methyl)piperidine-1-carboxylate | HCID 11733854 | — |
| Solvent | Isopropanol | HCID 3776 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 6-Methoxy-7-((piperidin-4-yl)methoxy)-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one hydrochloride | HCID 22030672 | 100% |
Reaction Steps
A solution of 6-methoxy-3-((pivaloyloxy)methyl)-7-((1-tert-butyloxycarbonylpiperidin-4-yl)methoxy)-3,4-dihydroquinazolin-4-one (7.9 g, 16 mmol) in methylene chloride (80 ml) containing 5.5M hydrogen chloride in isopropanol (80 ml) was stirred for 1 hour at ambient temperature. Ether was added and the solid was collected by filtration, washed with ether and dried under vacuum at 60° C. to give 6-methoxy-7-((piperidin-4-yl)methoxy)-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one hydrochloride (6.9 g, 100%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08492560B2 |
| Source dataset | uspto-grants-2013_07 |
| ORD ID | ord-c81749275b084cce8eaa56aa556aa429 |
| Source note | uspto-grants-2013_07 |