O. Miyata et al., A CONCISE SYNTHESIS OF RIGIDIFIED BETA-AMINO ACIDS VIA SULFANYL RADICAL ADDITION-CYCLIZATION OF OXIME ETHERS AND HYDRAZONES, Synlett, (3), 1998, pp. 271-272
A new route to the rigidified cyclic beta-amino acids such as cispenta
cin has been developed by sulfanyl radical addition-cyclization of the
alkenyl-tethered-oxime ethers and hydrazones.