METHOD FOR PRODUCING PYRROLIDINE COMPOUND
    3.
    发明公开

    公开(公告)号:EP4063349A1

    公开(公告)日:2022-09-28

    申请号:EP20891142.0

    申请日:2020-11-18

    IPC分类号: C07D207/14 C07D207/22

    摘要: The present invention provides a production method suitable for industrial production of (2S,3S)-3-amino-2-(3-bromo-2-fluorobenzyl)pyrrolidine having a protecting group at the 1-position.
    The present invention is a method for producing N-[(4-methylphenyl)sulfonyl]-L-phenylalanine salt of (2S,3S)-3-amino-2-(3-bromo-2-fluorobenzyl)pyrrolidine having a protecting group at the 1-position, which comprises
    Step 2: a step of subjecting 2-(3-bromo-2-fluorobenzyl)-3-(methoxyimino)pyrrolidine having a protecting group at the 1-position to a reduction reaction; and
    Step 3: a step of subjecting the product obtained in Step 2 to optical resolution using salt formation with N-[(4-methylphenyl)sulfonyl]-L-phenylalanine.