(Digitoxigenin-3-yl)-4-O-acetyl-2,3,6-tridesoxy-α-L-erythro-hex-2-enopyranosid 在
Lindlar's catalyst
氢气 作用下,
以
乙醇 为溶剂,
20.0 ℃
、101.32 kPa
条件下,
以92%的产率得到(2S,3R,6R)-6-(((3S,5R,8R,9S,10S,13R,14S,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2,5-dihydrofuran-3-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)-2-methyltetrahydro-2H-pyran-3-yl acetate