THIOL-MODIFIED HYALURONAN
The present invention relates to biscarbodiimides, thiourea derivatives, urea derivatives, and cross-linked hyaluronan derivatives having at least one intramolecular disulfide bond, and methods of preparation thereof. The invention also includes thiolated hyaluronan derivatives and salts thereof hav...
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| creator | SADOZAI, KHALID, K SHERWOOD, CHARLES, H BULPITT, PAUL, C.A |
| description | The present invention relates to biscarbodiimides, thiourea derivatives, urea derivatives, and cross-linked hyaluronan derivatives having at least one intramolecular disulfide bond, and methods of preparation thereof. The invention also includes thiolated hyaluronan derivatives and salts thereof having at least one pendant thiol group or a modified pendant thiol group, and methods of preparation thereof. An example of a modified pendant thiol group is a sulfhydryl group linked to a small molecule such as a bioactive agent, for example a drug or pharmaceutically active moiety. A hyaluronan derivative having a sulfhydryl group linked to a pharmaceutically active moiety is useful as a sustained or controlled release drug delivery vehicle. Compositions containing the hyaluronan derivatives of the invention can reversibly viscosify in vivo or in vitro, in response to mild changes in condition, and are thus useful in ophthalmic surgery and in tissue engineering. |
| format | Patent |
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The invention also includes thiolated hyaluronan derivatives and salts thereof having at least one pendant thiol group or a modified pendant thiol group, and methods of preparation thereof. An example of a modified pendant thiol group is a sulfhydryl group linked to a small molecule such as a bioactive agent, for example a drug or pharmaceutically active moiety. A hyaluronan derivative having a sulfhydryl group linked to a pharmaceutically active moiety is useful as a sustained or controlled release drug delivery vehicle. Compositions containing the hyaluronan derivatives of the invention can reversibly viscosify in vivo or in vitro, in response to mild changes in condition, and are thus useful in ophthalmic surgery and in tissue engineering.</description><language>eng ; fre ; ger</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; DERIVATIVES THEREOF ; HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; ORGANIC MACROMOLECULAR COMPOUNDS ; POLYSACCHARIDES ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2014</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20141001&DB=EPODOC&CC=EP&NR=1368309B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25553,76306</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20141001&DB=EPODOC&CC=EP&NR=1368309B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SADOZAI, KHALID, K</creatorcontrib><creatorcontrib>SHERWOOD, CHARLES, H</creatorcontrib><creatorcontrib>BULPITT, PAUL, C.A</creatorcontrib><title>THIOL-MODIFIED HYALURONAN</title><description>The present invention relates to biscarbodiimides, thiourea derivatives, urea derivatives, and cross-linked hyaluronan derivatives having at least one intramolecular disulfide bond, and methods of preparation thereof. 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The invention also includes thiolated hyaluronan derivatives and salts thereof having at least one pendant thiol group or a modified pendant thiol group, and methods of preparation thereof. An example of a modified pendant thiol group is a sulfhydryl group linked to a small molecule such as a bioactive agent, for example a drug or pharmaceutically active moiety. A hyaluronan derivative having a sulfhydryl group linked to a pharmaceutically active moiety is useful as a sustained or controlled release drug delivery vehicle. Compositions containing the hyaluronan derivatives of the invention can reversibly viscosify in vivo or in vitro, in response to mild changes in condition, and are thus useful in ophthalmic surgery and in tissue engineering.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | THIOL-MODIFIED HYALURONAN |
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