Acetic acid (2R,3R,4R,5R)-3,5-dihydroxy-2-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-ylmethoxy)-tetrahydro-pyran-4-yl ester 在
吡啶 、
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 23.0h,
生成
6-O-(2,3,4-Tri-O-acetyl-α-D-ribopyranosyl)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose