RACEMIC BETA-AMINOSULFONE COMPOUNDS
    4.
    发明申请

    公开(公告)号:US20200087254A1

    公开(公告)日:2020-03-19

    申请号:US16500673

    申请日:2018-03-28

    IPC分类号: C07C315/04

    摘要: It is described an industrially viable and advantageous process for the preparation of racemic beta-aminosulfone (1), an useful intermediate for the preparation of N-(2-((1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl)acetamide, also known as Apremilast, the latter being suitable for use in methods of treating, preventing and/or managing psoriasis or psoriatic arthritis.

    Resolution of racemic beta-aminosulfone compounds

    公开(公告)号:US11149003B2

    公开(公告)日:2021-10-19

    申请号:US16500671

    申请日:2018-03-28

    IPC分类号: C07D209/48 C07C317/28

    摘要: It is described an industrially viable and advantageous process for the preparation of (S)-beta-aminosulfone (1) starting from the corresponding racemic compound, said (S)-beta-aminosulfone being a useful intermediate for the preparation of N-(2-((1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl)acetamide, also known as Apremilast, the latter being suitable for use in methods of treating, preventing and/or managing psoriasis or psoriatic arthritis.