60076-41-7Relevant academic research and scientific papers
PROCESS FOR PREPARING HEPARINOIDS AND INTERMEDIATES USEFUL IN THE SYNTHESIS THEREOF
-
, (2013/02/28)
Processes are disclosed for the synthesis of the Factor Xa anticoagulant fondaparinux and related compounds. Protected pentasaccharide intermediates and efficient and scalable processes for the industrial scale production of fondaparinux sodium by conversion of the protected pentasaccharide intermediates via a sequence of deprotection and sulfonation reactions are provided.
Hybrid aminoglycoside antibiotics via tsuji palladium-catalyzed allylic deoxygenation
Hanessian, Stephen,Maianti, Juan Pablo,Matias, Rowena D.,Feeney, Lee Ann,Armstrong, Eliana S.
, p. 6476 - 6479 (2012/02/14)
Biosynthetically inspired manipulation of the antibiotic paromomycin led, in six high-yielding steps, to a ring A harboring an R,β-unsaturated 6′- aldehyde and an allylic 3′-methylcarbonate group. Tsuji deoxygenation in the presence of 5 mol % Pd2(dba)3 and Bu3P granted access to a novel series of 3′,4′-dideoxy- 4′,5′-dehydro ring A hybrids. The neomycin-sisomicin hybrid exhibited superior in vitro antibacterial activity to the parent compound neomycin.
Synthesis of heparin partial structures and their binding activities to platelets
Koshida, Shuhei,Suda, Yasuo,Sobel, Michael,Ormsby, Julie,Kusumoto, Shoichi
, p. 3127 - 3132 (2007/10/03)
A synthetic pentasaccharide corresponding to the antithrombin III-binding region in heparin was also found to bind to human platelets. To identify the platelet-binding site in the pentasaccharide which is expected to be a novel sequence in heparin responsible for its platelet-binding, five partial structures of this particular pentasaccharide were synthesized. In a competitive assay using [3H]-heparin, a trisaccharide, O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-α-D-glucopyranosyl)- (1→4)-O-(2-O-sulfo-α-L-idopyranosyluronic acid)-(1→4)-2-deoxy-2-sulfamido-6-O-sulfo-α-D-glucopyranose, was concluded to be a high-affinity site for heparin's binding to platelets.
SYNTHESIS OF CARBOCYCLIC LIGNAN VARIANTS RELATED TO PODOPHYLLOTOXIN
Saito, Hitoshi,Nishimura, Yoshio,Kondo, Shinichi,Takeuchi, Tomio
, p. 1235 - 1238 (2007/10/02)
Carbocyclic lignan variants related to podophyllotoxin were synthesized by a stereoselective BF3-catalyzed coupling of podophyllotoxin derivative with chiral aminocyclitols.
