Unexpected reactivity of N2-benzylidene guanosine derivatives
摘要:
Guanosine derivatives masked at the sugar are protected at N-2 by a benzylideneamine group for the first time. The free 5'-hydroxyl function reveals to be incompatible with the N-2-protective group that is then rapidly hydrolyzed to regenerate the free exocyclic amine. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Unexpected reactivity of N2-benzylidene guanosine derivatives
摘要:
Guanosine derivatives masked at the sugar are protected at N-2 by a benzylideneamine group for the first time. The free 5'-hydroxyl function reveals to be incompatible with the N-2-protective group that is then rapidly hydrolyzed to regenerate the free exocyclic amine. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
final deprotection step was achieved by catalytic hydrogenolysis. The biological properties of the compounds have been evaluated toward transducin, the G-protein of the visual photoreceptor. Three guanosine imidodiphosphate derivatives bearing a linker at different positions on the sugar and on the base were then prepared and evaluated, giving some insight into the GDP binding site of transducin.
Unexpected reactivity of N2-benzylidene guanosine derivatives
作者:Stéphane Mons、Luc Lebeau、Charles Mioskowski
DOI:10.1016/s0040-4039(98)02074-7
日期:1998.12
Guanosine derivatives masked at the sugar are protected at N-2 by a benzylideneamine group for the first time. The free 5'-hydroxyl function reveals to be incompatible with the N-2-protective group that is then rapidly hydrolyzed to regenerate the free exocyclic amine. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.