title: Synthetic evaluation of disulphide-bonded sarafotoxin on a poly(oxy ether) grafted dendrimeric poly(alkyl amine) support for polymer assisted organic synthesis.
abstract: The present paper describes the synthesis, characterization and assessment of a novel class of insoluble polymeric polystyrene supports which combines polar poly(ethylene glycol)dimethacrylate as a cross-linker and poly(ethylene glycol) grafted poly(N,N-bisethylamine) as a dendritic template. Poly(N,N-bisethylamine) dendrimers were generated by a series of reactions such as Schiff base integration, acidolysis, diazotization and thionyl chloride treatment. The same successive sequences of reactions have been followed for second generation dendrimers also and subjected to PEGylation (PEG 600) to achieve the desirable physico-chemical properties. The applicability of the novel PEGylated dendrimer support was demonstrated by synthesizing linear as well as disulfide bonded peptides in high yields and purities.
authors.affiliation: Chemical Biology, Rajiv Gandhi Centre for Biotechnology, Poojappura, Thiruvananthapuram-695 014, Kerala, India.
authors.forename: M A
authors.initials: MA
authors.lastname: Siyad
authors.forename: G S Vinod
authors.initials: GS
authors.lastname: Kumar
mesh_terms: D050091:Dendrimers / Q000138:chemical synthesis / Q000737:chemistry*; D004220:Disulfides / Q000737:chemistry*; D015394:Molecular Structure; D010316:Particle Size; D011073:Polyamines / Q000138:chemical synthesis / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*; D013499:Surface Properties; D014757:Viper Venoms / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D050091:Dendrimers; D004220:Disulfides; D011073:Polyamines; D014757:Viper Venoms; C057354:sarafotoxins s6; D011092:Polyethylene Glycols