Acetic acid (2S,5R)-5-(3-{2-[2-(4-{2-[3-(5-bromo-pyridin-2-yl)-thioureido]-ethyl}-piperazin-1-yl)-ethoxy]-ethyl}-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2,5-dihydro-furan-2-ylmethyl ester 在
氰化钠 作用下,
以
甲醇 为溶剂,
以91%的产率得到1-(5-Bromo-pyridin-2-yl)-3-{2-[4-(2-{2-[3-((2R,5S)-5-hydroxymethyl-2,5-dihydro-furan-2-yl)-2,6-dioxo-3,6-dihydro-2H-pyrimidin-1-yl]-ethoxy}-ethyl)-piperazin-1-yl]-ethyl}-thiourea