Conversion of dehydro abietic acid into a steroid skeleton formation of the a ring part 1
Tahara, A.; Harigaya, Y.; Onda, M.
Chemical and Pharmaceutical Bulletin 23(9): 1989-1995
Conversion of dehydroabietic acid to a steroid skeleton was attempted. Synthesis of an 3-oxo compound having a steroid-type A ring was successfully completed from the starting material [a benzonilidene compound] via 2 intermediates.