5-Fluoro-3α,17β-dihydroxy-5α-androstan-6-one IV and the method of its production are described. The synthesis consists of partial hydrolyses of 5-fluoro-6-oxo-5α-androstan-3β,17β-diyl diacetate with mild alkaline agent to 5-fluoro-3β-hydroxy-6-oxo-5α-androstan-17β-yl acetate that on solvolytic change of hydroxyl configuration in position 3 affords 5-fluoro-3α-hydroxy-6-oxo-5α-androstan-17β-yl acetate, which on deprotection afforded desired 5-fluoro-3α,17β-dihydroxy-5α-androstan-6-one IV. The invention relates also to the use of 5-fluoro-3α,17β-dihydroxy-5α-androstaii-6-one IV for influencing of plant growth, especially for increasing of plant yield and also for removal of plant stresses.
本文描述了5-
氟-3α,17β-二羟基-5α-
雄甾烷-6-酮IV及其制备方法。合成方法包括使用温和的碱性试剂对5-
氟-6-氧代-5α-
雄甾烷-3β,17β-二
乙酸酯进行部分
水解,得到5-
氟-3β-羟基-6-氧代-5α-
雄甾烷-17β-
醋酸酯,然后通过溶解性改变3位的羟基构型,得到5-
氟-3α-羟基-6-氧代-5α-
雄甾烷-17β-
醋酸酯,最后通过去保护作用得到所需的5-
氟-3α,17β-二羟基-5α-
雄甾烷-6-酮IV。本发明还涉及使用5-
氟-3α,17β-二羟基-5α-
雄甾烷-6-酮IV来影响植物生长,特别是增加植物产量以及消除植物压力。