作者:Mar�a?A. Ponce、Rosa Erra-Balsells、Andrea?C. Bruttomesso、Eduardo?G. Gros
DOI:10.1002/hlca.200490270
日期:2004.12
families. Thus, from commercially available (3β,5α)-hydroxy-androstan-17-one and (3β)-3-hydroxyandrost-5-en-17-one, the following 3-[(tert-butyl)dimethylsilyl]oxy}-substituted, 17(20)-unsaturated pregnanes were prepared (see Fig. 1): (3β,5α)-21-norpregn-17(20)-ene 1; (3β,5α,17Z)-pregn-17(20)-ene 2, (3β,5α,16α,17E)-pregn-17(20)-en-16-ol 3, (16β,5α,17E)-pregn-17(20)-en-16-ol 4, (3β,5α,16β,17E)-pregn-17(20)-en-16-ol
研究了与pregn-17(20)-烯和pregn-5,17(20)-二烯的单线态氧反应的过程,以比较某些类固醇家族中两个烯烃部分的反应性。因此,从可商购获得的(3β,5α)-羟基-雄烷-17-一和(3β)-3-羟基-雄烷-5-en-17-一,以下3-[(叔丁基)二甲基甲硅烷基]氧基} -取代的,制备17(20)不饱和孕烷(参见图1):(3 β,5 α)-21降孕-17(20) -烯1 ; (3 β,5个α,17 Ž) -孕-17(20) -烯2,(3 β,5 α,16 α,17 ë) -孕-17(20) -烯-16-醇3,(16 β,5 α,17 ë) -孕-17(20) -烯-16-醇4,(3 β,5 α,16 β,17 ë) -孕-17(20) -烯-16-醇乙酸酯5,(3 β,16 α)-21-去甲孕甾-5,17-(20) -二烯-16-醇6,(3 β,16 α,17 ë)-pregna