Draper R W, Puar M S, Vater E J, McPhail A T
Chemical Process Development Department, Schering-Plough Research Institute, Kenilworth, New Jersey 07033-0539, USA.
Steroids. 1998 Mar;63(3):135-40. doi: 10.1016/s0039-128x(97)00155-4.
The structure of an unusual dienone-phenol rearrangement product 4 obtained during the synthesis of mometasone furoate (Sch 32088) was assigned on the basis of NMR and x-ray crystallographic data. The mechanism of formation is discussed.