The terminal N-Boc protected diamino PAMAM 7 was condensed (EDC-DMAP) with two units of mycophenolic acid (MPA) giving the N-Boc protected dendron 8 in a good yield (76%). The ammonium trifluoroacetate 9 was prepared from 8 by acid treatment (TFA-THF-H2O) and was split into two equal parts. The first half was treated with di-2-pyridyl thionocarbonate (DPT) in the presence of Et3N to give the corresponding isothiocyanate 10. This was reacted with the second half of 9 providing the symmetrical dendrimer 11 (68% yield), exposing four MPA units around the thioureido-PAMAM core.
|Autori interni:||D'ANDREA, FELICIA|
|Autori:||Guazzelli L.; D'Andrea F.; Giorgelli F; Catelani G.; Panattoni A.; Luvisi A.|
|Titolo:||Synthesis of PAMAM Dendrimers Loaded with Mycophenolic Acid as New Potential Immunosuppressants|
|Anno del prodotto:||2015|
|Digital Object Identifier (DOI):||10.1155/2015/263072|
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