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4-amino-5-(pyridin-3-yl)-N7-(β-D-ribofuranosyl)-pyrrolo[2,3-d]pyrimidine[ No CAS ]
Yield
Reaction Conditions
Operation in experiment
35%
With trisodium tris(3-sulfophenyl)phosphine; palladium diacetate; sodium carbonate; In water; acetonitrile; at 100℃; for 20.0h;Inert atmosphere;
General procedure: 31 (1 eq.), boronic acid (1.5 eq.) or pinacol ester [for compound14 (1.5 eq.)], Na2CO3 (9 eq.), Pd(OAc)2 (0.05 eq.) and TPPTS (0.15 eq.)were added to a 10mL round-bottom flask, equipped with a stir bar.Next, the flask was evacuated and refilled with argon. This procedure was repeated three times in total. Next, degassed MeCN(2 mL/mmol SM) and H2O (4 mL/mmol SM) were added to the solids under argon. After 5 min of stirring, the mixture was heatedto 100 C in a pre-heated oil bath. When the starting material was fully consumed (usually 1e3 h), the mixture was cooled to ambient temperature, and neutralized (pH ~ 7) with 0.5M aq. HCl. Themixture was evaporated till dryness, resuspended in MeOH and evaporated (three times). Next, the mixture was adsorbed onto Celite (fromMeOH) and eluted over a short silica pad (~5 cm) with 20% MeOH/DCM. The liquid was evaporated in vacuo and purified by column chromatography.
Chemistry
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Material Science
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