公开(公告)号：US20170204072A1

公开(公告)日：2017-07-20

申请号：US15477159

申请日：2017-04-03

Applicant: Syngenta Participations AG

Inventor： Tomas SMEJKAL ,  Helmars SMITS ,  Christian LOTHSCHUETZ ,  Miroslav TERINEK

IPC: C07D261/04 ,  C07C259/06

CPC classification number: C07D261/04 ,  C07C259/06 ,  C07D261/12

Abstract: The present invention relates to processes for the preparation of substituted cycloserine compounds of formula (I) wherein R1 is C1-C8alkyl, C1-C8haloalkyl, C3-C6 cycloalkyl, aryl or aryl substituted by one to five R11, or aryl-C1-C4alkylene or aryl-C1-C4alkylene substituted by one to five R11; and each R11 is independently C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, cyano or halogen; The invention also relates to intermediates produced by the processes.Compounds of formula (I) are useful intermediates for the production of compounds in the agricultural and pharmaceutical fields.