8-(3,4-bis-benzoyloxy-5-benzoyloxymethyl-3-methyl-tetrahydro-furan-2-yl)-2-methylsulfanyl-4,5-dioxo-3,4,5,8-tetrahydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid ethyl ester 在
镍 乙醇 、
甲醇 、
氨 作用下,
以
二甲基亚砜 为溶剂,
反应 48.0h,
以10%的产率得到8-(3,4-dihydroxy-5-hydroxymethyl-3-methyl-tetrahydro-furan-2-yl)-4,5-dioxo-3,4,5,8-tetrahydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid amide