143838-10-2Relevant articles and documents
Method for synthesis of C2-symmetric diamino diol mediated by titanium complexes
-
Page/Page column 5, (2008/06/13)
A method for synthesis of C2-symmetric diamino diol mediated by titanium complexes is provided. A substituted-L-phenylalaninal undergoes pinacol coupling to yield the corresponding C2-symmetric (1S,2R,3R,4S)-1,4-diamino 2,3-diol in the presence of Cp2TiCl2/ZnCl2 and zinc metal, mediated in good yield and highly selective. This titanium-catalyzed reaction yields diaminodiol, offering a convenient alternative method to the synthesis of C2-symmetric peptidic protease inhibitors. Consequently, the method allows to synthesize TL-3 via titanium complex in moderate yield.
Pharmaceutical composition
-
, (2008/06/13)
A solid pharmaceutical composition is disclosed which comprises a pharmaceutically acceptable adsorbent or a mixture of pharmaceutically acceptable adsorbents to which is adsorbed a mixture of (1) a pharmaceutically acceptable organic solvent or a mixture of pharmaceutically acceptable organic solvents, (2) an HIV protease inhibiting compound and (3) one or more pharmaceutically acceptable acids. The solid composition can optionally be encapsulated in a hard gelatin capsule.