Eight 17-monoglucosides derived from androst-5-ene-3,17-diol, 14β-androst-5-ene-3,17-diol, 5β-androstane-3,17-diol and estradiol derivatives differing in configuration in the positions 17 and 3, have been prepared. The silver silicate - catalyzed glycosylation with 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide gave 43-72% of the corresponding peracetylated β-D-glucopyranosides. The starting selectively protected 5β-androstane-3,17-diol derivatives were synthesized by a procedure utilizing orthogonality of the pivalate, acetate and nitrate protecting groups.
从
雄烯二醇-5-
烯-3,17、14β-
雄烯二醇-5-
烯-3,17、5β-
雄甾烷-3,17-二醇和
雌二醇衍
生物中,制备了八种单
葡萄糖苷,它们在位置17和3的构型不同。使用2,3,4,6-四<斜体>O斜体>-
乙酰基-α-
D-葡萄糖吡喃糖
溴化物和
银硅酸盐催化的糖基化反应,得到了相应的过乙酰化β-
D-葡萄糖吡喃糖的43-72%。起始的选择性保护的5β-
雄甾烷-3,17-二醇衍
生物是通过利用
戊酸、
乙酸和
硝酸保护基的正交性而合成的。