نتایج جستجو برای: polyether diester
تعداد نتایج: 7434 فیلتر نتایج به سال:
A bifunctional catalyst containing a polyether backbone and a nucleophilic imidazole moiety has been prepared that demonstrates cooperative catalysis in the presence of added group 1 and 2 salts for the phosphorylation of alcohols.
Hyperbranched polymers based on a polyether and polyester have been modified and used as macromolecular ligands for the anticancer drug cisplatin, giving controlled release of the drug over 7 days.
The synthesis of five fused-bicyclic medium-ring lactones carrying identical ring-fusion to that in the polyether toxins is described using an enolate hydroxylation, intramolecular hydrosilation, Claisen rearrangement sequence.
Two new antibiotics, A-218 and K-41, were isolated from strains identified as Streptomyces hygroscopicus. The antibiotics are characterized as polycyclic polyether compounds and are active against gram-positive bacteria.
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