The title synthesis was achieved by featuring diastereoface selective cyclopropanation of (4R,5S)-4,5-diphenyl-3-vinyl-2-oxazolidinone, the chiral and conformationally rigid N-vinylcarbamate, with zinc-monofluorocarbenoid followed by hydrogenolysis of formed (4R,5S)-3-[(1R-2S)-2-fluorocyclopropyl]-4,5-diphenyl-2-oxalidinone.
The title synthesis was achieved by featuring diastereoface-selective cyclopropanation of (4R,5S)-4,5-diphenyl-3-vinyl-2-oxazolidinone and its related compounds, the chiral conformationally rigid N-vinylcarbamates, with zinc-monofluorocarbenoid, followed by hydrogenolysis of the major addition products. The diastereoface-selectivity of the cyclopropanation could be explained by the most stable conformation
The title synthesis was accomplished by featuring highly cis-selective cyclpropanation of an N-vinylcarbamate with zinc-monofluorocarbenoid followed by deprotection of the formed N-(cis-2-fluorocyclopropyl)carbamate. Optical resolution of dl-cis-2-fluorocyclopropylamine was also achieved by employing l-menthyl chloroformate as a resolving agent.
[EN] IMIDAZO[1,2-A]PYRIDINE DERIVATIVES AS IRAK4 INHIBITORS AND THEIR USE IN THE TREATMENT OF DISEASE<br/>[FR] DÉRIVÉS D'IMIDAZO[1,2-A]PYRIDINE SERVANT D'INHIBITEURS D'IRAK4 ET LEUR UTILISATION DANS LE TRAITEMENT D'UNE MALADIE
申请人:BIOGEN MA INC
公开号:WO2022140425A1
公开(公告)日:2022-06-30
This disclosure relates to imidazo[ 1,2-a]pyridinyl derivatives of formula (I), or pharmaceutically acceptable salts thereof, Formula (I) in which all of the variables are as defined in the specification, capable of modulating the activity of IRAK4. The disclosure further provides methods to their preparation, to their medical use, in particular to their use in the treatment and management of diseases or disorders including inflammatory disease, autoimmune disease, cancer, cardiovascular disease, a disease of the central nervous system, disease of the skin, an ophthalmic disease and condition, and a bone disease.
[EN] 2H-INDAZOLE DERIVATIVES AS IRAK4 INHIBITORS AND THEIR USE IN THE TREATMENT OF DISEASE<br/>[FR] DÉRIVÉS DE 2H-INDAZOLE SERVANT D'INHIBITEURS D'IRAK4 ET LEUR UTILISATION DANS LE TRAITEMENT DE MALADIES
申请人:BIOGEN MA INC
公开号:WO2022140415A1
公开(公告)日:2022-06-30
This disclosure relates to 2H-indazole derivatives of formula (I), or pharmaceutically acceptable salts thereof, in which all of the variables are as defined in the specification, capable of modulating the activity of IRAK4. The disclosure further provides methods to their preparation, to their medical use, in particular to their use in the treatment and management of diseases or disorders including inflammatory disease, autoimmune disease, cancer, cardiovascular disease, a disease of the central nervous system, disease of the skin, an ophthalmic disease and condition, and a bone disease.