110550-28-2Relevant academic research and scientific papers
An unexpected chelation-controlled Yb(OTf)3-catalyzed aminolysis and azidolysis of cyclitol epoxides
Serrano, Pedro,Llebaria, Amadeu,Delgado, Antonio
, p. 7165 - 7167 (2002)
A chelation-controlled aminolysis and azidolysis of cyclitol epoxides with Yb(OTf)3 has been disclosed. The presence of a free OH group able to direct the coordination with the lanthanide seems essential for an efficient regiocontrol of the pro
Practical synthesis of (-)-1-amino-1-deoxy-myo-inositol from achiral precursors
Gonzalez-Bulnes, Patricia,Casas, Josefina,Delgado, Antonio,Llebaria, Amadeu
, p. 1947 - 1952 (2008/02/10)
A new synthesis of enantiomerically pure 1-amino-1-deoxy-myo-inositol is reported. The route described employs p-benzoquinone, an achiral compound, as the starting material to give conduritol B tetraacetate in three steps. Kinetic resolution of this compound using a palladium catalyst with a chiral ligand allows access to a conduritol B tetraester in high enantiomeric excess. This compound is transformed into tetrabenzyl conduritol B epoxide, which is regioselectively opened with azide to give the key azidocyclitol. Final transformation into (-)-1-amino-1-deoxy-myo-inositol hydrochloride is achieved in four synthetic steps. This sequence allows the synthesis of this compound in high enantiomeric purity in a semi-preparative scale.
New syntheses of 1D- and 1L-1,2-anhydro-myo-inositol and assessment of their glycosidase inhibitory activities
Falshaw, Andrew,Hart, Joanne B.,Tyler, Peter C.
, p. 301 - 308 (2007/10/03)
The 1D and 1L enantiomers of 1,2-anhydro-myo-inositol (conduritol B epoxide) were synthesised from 1d-pinitol and 1l-quebrachitol, respectively, and their activities were compared in selected glycosidase inhibition assays. The 1d enantiomer was found to be the active isomer, functioning as an irreversible inhibitor of sweet almond β-D-glucosidase. Neither isomer was active against the α-D-glucosidase from Bacillus stearothermophilus or the β-D-galactosidase from Aspergillus oryzae. (C) 2000 Elsevier Science Ltd.
