摘要:
Conjugates are provided, an exemplary conjugating having a single water-soluble, non-peptidic polymer, such as a poly(ethylene oxide), attached to a chitosan. Complexes of small interfering nucleic acids formed with such conjugates as well as small interfering nucleic acids attached to such conjugates are also provided. Related methods, intermediates, and compositions are also provided.
摘要:
Polymeric reagents comprising a polymer attached, either directly or through one or more atoms, to a ketone or a related functional group such as ketone hydrate, thione, monothiohydrate, dithiohydrate, hemiketal, monothiohemiketal, dithiohemiketal, ketal, or dithioketal are provided. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.
摘要:
The invention relates to (among other things) non-ring hydroxy substituted taxanes and methods for synthesizing the same. The invention further relates to conjugating the non-ring hydroxyl substituted taxanes to a water-soluble, non-peptidic polymer.
摘要:
The invention relates to (among other things) deuterated and/or fluorinated docetaxel and cabazitaxel and derivatives thereof, as well as compositions comprising each of the foregoing.
摘要:
Among other aspects, provided herein are multi-arm polymeric prodrug conjugates of taxane-based compounds and/or fluorinated forms thereof. Methods of preparing such conjugates as well as methods of administering the conjugates are also provided. Upon administration to a patient, release of the taxane-based compound is achieved.
摘要:
Provided herein are polymeric α-hydroxy aldehyde or α-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the α-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.
摘要:
Methods for forming maleimide functionalized polymers are provided. In one such embodiment, a maleimide functionalized polymer is prepared in a method that includes a step of carrying out a reverse Diels-Alder reaction. Intermediates useful in the methods, as well as methods for preparing the intermediates, are also provided. Also provided are polymeric reagents, methods of using polymeric reagents, compounds and conjugates.
摘要:
Disclosed are water soluble polymeric conjugates comprising the structure POLY-[Y—S—S-A]x, where POLY is a water soluble polymer; Y is a hydrocarbon-based spacer group, x is 1 to 25, S—S is a disulfide group attached to an sp3 hybridized carbon of Y; and A is a covalently linked residue of a pharmacologically active molecule. Preferably, the water soluble polymer is a PEG polymer. Also disclosed are polymeric reagents useful to prepare such conjugates, and methods of their formation and use.
摘要:
The invention provides a water-soluble polymer comprising (i) an imide group comprising a linking nitrogen atom, a first carbonyl group covalently attached to the linking nitrogen atom, and a second carbonyl group covalently attached to the linking nitrogen atom; (ii) a first water-soluble polymer segment covalently attached, either directly or through one or more atoms, to the first carbonyl group of the imide group and (iii) a second water-soluble polymer segment covalently attached, either directly or through one or more atoms, to the second carbonyl group of the imide group. The invention also provides, among other things, methods for preparing polymers, conjugates, pharmaceutical compositions and the like.
摘要:
The present invention is directed to conjugates of hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors.