Crystalline mixtures of partial methyl ethers of beta-cyclodextrin and related compounds
US6602860B1 · kind B1 · utility
5Cited by
4References
16Claims
0Family size
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Key dates
| Filing date | Nov 9, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L5/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Certain mixtures of cyclodextrin derivatives, which were synthesized in mildly basic conditions, can be separated into mixtures that crystallize easily and mixtures of similar composition, which remain amorphous. Thus, it is possible to obtain the particular advantages of crystalline and/or amorphous state components from one reaction product. Both crystalline and amorphous components of the product have good ability to form inclusion complexes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.