65632-62-4Relevant articles and documents
A scalable process to the key intermediate of cilazapril, (S)-1-benzyloxycarbonylhexahydropyridazine-3-carboxylic acid, through a novel cascade course
Chen, Yu,Lu, Yuwei,Zou, Qing,Chen, Huansheng,Ma, Dawei
, p. 1209 - 1213 (2013)
A novel and efficient manufacturing technology is disclosed in the present work for the preparation of (S)-1-benzyloxycarbonylhexahydropyridazine-3- carboxylic acid, which is a key intermediate of cilazapril. The whole process includes only three steps; the first two steps were conducted in one pot, followed by a novel selective removal of a Cbz group in a cascade course.
Stereochemical Definition and Chirospecific Synthesis of the Peptide Deformylase Inhibitor Sch 382583
Coats, Reed A.,Lee, Sheng-Lian,Davis, Kari A.,Patel, Kanu M.,Rhoads, Elaine K.,Howard, Michael H.
, p. 1734 - 1737 (2007/10/03)
The recently reported natural product Sch 382583 (1), an inhibitor of peptide deformylase, has been synthesized in 16 steps from commercially available starting materials. The three chiral centers were set by a combination of chiral auxiliary and chiral p
Enantioselective syntheses of (R)- and (S)-hexahydropyridazine-3-carboxylic acid derivatives
Schmidt, Ulrich,Braun, Christine,Sutoris, Heinz
, p. 223 - 229 (2007/10/03)
Appropriately protected optically active tetrahydropyridazine-3-carboxylic acid and hexahydropyridazine-3-carboxylic acid were prepared via ring closure of α-hydrazino- and δ-hydrazinopentanoates. Either optically active glutamic acid or an enantioselective catalytic hydrogenation was used to generate the chiral center. The numerous optically active intermediates are valuable starting materials for the synthesis of other unusual amino acids.