Crystalline mixtures of partial methyl ethers of beta-cyclodextrin and related compounds
OwnerJosef Pithainventor
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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.
Claims16
A composition comprising a crystalline component of mixtures of partial ethers of parent cyclodextrins wherein total ether substituents are less than two times the number of glucose residues.
A composition comprising mixtures of partial ethers of parent cyclodextrins containing a crystalline component and a simultaneously produced non-crystalline component wherein the crystalline component is comprised of mixtures of partial ethers of parent cyclodexrins wherein total ether substituents replacing hydroxyl groups of the parent cyclodextrins are less that two times the number of glucose residues.
Dependencies are inferred from the claim text.