1-[(3-cyano-pyridin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-phthalimido-piperidin-1-yl)-xanthine 在
C.I.酸性橙108 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以86.2%的产率得到1-[(3-cyano-pyridin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-((R)-3-amino-piperidin-1-yl)-xanthine