HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-hydroxy-2-methyl-2H-naphtho[2,1-e]-1,2-thiazine-3-carboxylic acid methylester-1,1-dioxide → HCID 68140774, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-hydroxy-2-methyl-2H-naphtho[2,1-e]-1,2-thiazine-3-carboxylic acid methylester-1,1-dioxide | HCID 54690651 | — |
| Reactant | HCID 68143541 | HCID 68143541 | — |
| Solvent | O-Xylene | HCID 7237 | — |
| Product | HCID 68140774 | HCID 68140774 | 67% |
Reaction Steps
N-(5,6-Dihydro-7H-thiopyrano[4,3-d]thiazol-2-yl)-4-hydroxy-2-methyl-2H-naphtho[2,1-e]-1,2-thiazine-3-carboxamide-1,1-dioxide was prepared analogous toExample 22 from 4-hydroxy-2-methyl-2H-naphtho[2,1-e]-1,2-thiazine-3-carboxylic acid methylester-1,1-dioxide and 2-amino-5,6-dihydro-7H-thiopyrano[4,3-d]thiazole. yield: 67% of theory: m.p. 255° C (decomp.; from xylene).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03992535 |
| Source dataset | uspto-grants-1976_11 |
| ORD ID | ord-09c24a3e1f8e478f988666e58f5388c9 |
| Source note | uspto-grants-1976_11 |