A stereoselective total synthesis of 17-O-acetyl-14α-hydroxy-3-O-methyl-11-oxo-estradiol-17β
Abstract
A stereoselective total synthesis of the title compound (13) was achieved with thermolysis of 3-hydroxy-2-[2-benzyloxy-2-(4-methoxy-1,2-dihydrobenzocyclobutenyl)ethyl]-2-methyl-3-vinylcyclopentan-1-one (1) as the key step. Compound (13) was converted into 14,15-didehydro-3-O-methylestradiol-17β which was identified by comparison with an authentic sample.