HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Bromide → HCID 135721824, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | HCID 22758809 | HCID 22758809 | — |
| Product | HCID 135721824 | HCID 135721824 | 82% |
Reaction Steps
Ethyl 6,7-dihydro-9,10-dimethoxy-4-oxo-4H-pyrimido[2,1-a]isoquinoline-3-carboxylate was treated with 48% hydrogen bromide as described in Example 19 to give a 82% yield of the title acid, m.p. 308°-314°. Recrystallization from N,N-dimethylformamide gave the analytical sample, m.p. 321°-323°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04127720 |
| Source dataset | uspto-grants-1978_11 |
| ORD ID | ord-77bc778b356e46be8b29461a6a5bfef8 |
| Source note | uspto-grants-1978_11 |