Methyl 2, 3-(15), 2, 4-(11) and 3, 4-di-O-methyl-α-D-fucopyranosides (8) were prepared from methyl α-D-fucopyranoside via methyl 3, 4-O-isopropylidene-α-D-fucopyranoside. These substances were required in connection with methylation analysis of saponins containing D-fucose residues. Compounds 8 and 11 had not previously been synthesized at the outset of the present work.
甲基2,3-(15),2,4-(11)和3,4-二-O-甲基-α-D-
吡喃岩藻糖苷(8)是通过甲基3,4-O-异亚丙基-α-D-
吡喃岩藻糖苷从甲基α-D-
吡喃岩藻糖苷制备的。这些物质是含
D-岩藻糖残基
皂苷甲基化分析所必需的。化合物8和11在开始这项工作之前尚未合成。