yl)-3-O-(β-D-galactopyraosyl)-α-L-fucopyranoside (5), and methyl 3-O-(β-D-glucopyranosyl)-4-O-(β-D-glucopyranosyl)-α-L-rhamopyranoside (9) have been synthesised using o-nitrobenzylidene acetals as photosensitive temporary protecting groups.
                                    甲基2- ø - (β - d
吡喃
葡萄糖基)-3- ø - (β - d
吡喃
葡萄糖基) - α -大号-fucopyranoside(4),甲基2- ø - (β - d -galactopyrannosyl)-3- Ô -(β - D-
吡喃半
乳糖基)-α - 
L-岩藻糖苷(5)和甲基3- O-(β - 
D-吡喃葡萄糖基)-4 - O-(β - D-葡
吡喃糖基)-α - 
L-鼠李糖吡喃糖苷(9)已经使用邻硝基亚苄基
乙缩醛作为光敏性临时保护基团合成。