An efficient stereoselective synthesis of 6-α-aminoestradiol: Preparation of estradiol fluorescent probes
作者:Maciej Adamczyk、Phillip G. Mattingly、Rajarathnam E. Reddy
DOI:10.1016/s0039-128x(97)00015-9
日期:1997.6
l] ether (4) and converted to the corresponding oxime (4). The oxime (4) on reduction with zinc in ethanol afforded the bis-SEM ether of 6-alpha-aminoestradiol (5) in 96% epimeric excess. Subsequently, 5 was hydrolyzed with HF to 6-alpha-aminoestradiol (6) in good yield. The absolute stereochemistry of the amino group in 6 was established by NMR and confirmed by X-ray crystallography on the corresponding