Solid forms of ceftolozane and processes for preparing
US11542279B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2017 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Mar 30, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The instant invention is related to a novel solid form of ceftolozane sulfate (the DMAc solvate of ceftolozane sulfate (Form 3)), compositions comprising ceftolozane sulfate DMAc solvate (Form 3), synthesis of Form 3 and an improved crystallization process using Form 3 to prepare ceftolozane sulfate Form 2. Novel compositions also include ceftolozane sulfate solid Form 3 and/or other crystalline and amorphous solid forms of ceftolozane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.