HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dimethylformamide → HCID 178504591, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | 1,1'-Carbonyldiimidazole | HCID 68263 | — |
| Reactant | HCID 178504592 | HCID 178504592 | — |
| Reactant | HCID 178509300 | HCID 178509300 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 178504591 | HCID 178504591 | — |
Reaction Steps
From 4,9-dihydro-7-(methylsulfinyl)-9-oxo-pyrazolo-[5,1-b]quinazoline-2-carboxylic acid (1.40 g; 5 mmole), DMF (50 ml), 1,1'-carbonyl-diimidazole (2.43 g; is mmole) and 5-amino-1-H-tetrazole, monohydrate (0.62 g; 6 mmole), following the procedure of Example 3, there is obtained 4,9-dihydro-7-(methylsulfinyl)-9-oxo-N-1H-tetrazol-5-yl-pyrazolo[5,1-b]quinazoline-2-carboxamide with pyridine (4:3), mp>350°; after crystallization from pyridine-ether.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04247555 |
| Source dataset | uspto-grants-1981_01 |
| ORD ID | ord-642dd4f2a5ae4b71ac40142e33656d79 |
| Source note | uspto-grants-1981_01 |