128524-63-0Relevant articles and documents
An enantioselective approach to (-)-aphanorphine featuring a stereoselective oxidative amidation
Pansare, Sunil V.,Kulkarni, Kaivalya G.
, p. 19127 - 19134 (2013/10/22)
A formal enantioselective synthesis of (-)-aphanorphine (91% ee), that culminates with the preparation of (+)-O-methyl aphanorphine, was achieved. The methodology involves the diastereoselective synthesis of a key 3,5-disubstituted pyrrolidinone intermediate by the intramolecular oxidative amidation of a suitably functionalized α-hydroxy pentenoic acid derivative. A late-stage N-formyl protection, which functions as a latent N-methyl group, is utilized as a simple alternative to a protecting group switch and subsequent N-methylation strategy implemented in all other syntheses of aphanorphine related to the present approach. The Royal Society of Chemistry 2013.
An effective route to (-)-aphanorphine using D-tyrosine as a chiral building block
Li, Min,Zhou, Peijie,Roth, Hans F.
, p. 55 - 60 (2007/12/31)
A stereoselective approach toward a naturally occurring alkaloid, (-)-aphanorphine, has been achieved via a series of reactions from Boc-D-tyrosine. Georg Thieme Verlag Stuttgart.
Cyclic sulfamidates as lactam precursors. An efficient asymmetric synthesis of (-)-aphanorphine
Bower, John F.,Szeto, Peter,Gallagher, Timothy
, p. 5793 - 5795 (2008/02/02)
A short and efficient enantioselective synthesis of (-)-aphanorphine is described based on the use of a cyclic sulfamidate to provide a suitably functionalised lactam that allows for construction of the tricyclic 3-benzazepine scaffold. The Royal Society