Development of a Practical Synthesis of a Purine Nucleoside Phosphorylase Inhibitor: BCX-4208
作者:Vivekanand P. Kamath、Jesus J. Juarez-Brambila、Christopher B. Morris、Christopher D. Winslow、Philip E. Morris
DOI:10.1021/op9001142
日期:2009.9.18
A practical synthesis of the purinenucleoside phosphorylase (PNP) inhibitor BCX-4208 (1) was accomplished in three telescoped steps. Mannich condensation of the 4-benzyloxy-9-deazahypoxanthine with (3R,4R)-3-hydroxy-4-(hydroxymethyl)pyrrolidine and formaldehyde followed by removal of the protecting group and crystallization furnished the desired product as a hydrochloride salt in 85% overall yield