| 摘要 |
There are described novel glycosides of catechol estrogen, a method of preparing the same, and a medicament comprising one of the glycosides as an active ingredient. The glycosides are shown by the formula of (see formula I) wherein X is carbonyl group or (see formula II) R10 is hydroxyl group or glycosyloxy group, and R2 is a hydrogen atom or ethynyl group; R11 is a hydrogen atom, hydroxyl group, or glycosyloxy group; R12 is hydroxyl group or glycosyloxy group; and R13 is hydroxyl group or glycosyloxy group, in which glycosyloxy group is selected from the group consisting of glucosyloxy. galactosyloxy, mannosyloxy, arabinosyloxy, ribosyloxy, xylosyloxy, fructosyloxy, rhamnosyloxy, fucosyloxy, maltosyloxy, cellobiosyloxy, lactosyloxy, sucrosyloxy, maltotriosyloxy, mal- totetraosyloxy, maltopentaosyloxy, maltohexaosyloxy, maltoheptaosyloxy, and sialosyloxy, and in this case, at least one of R10, R11, R12, and R13 is glycosyloxy group as defined above.
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